diff --git a/controllers/auth.js b/controllers/auth.js
index ab02c80b..27e11f43 100644
--- a/controllers/auth.js
+++ b/controllers/auth.js
@@ -11,7 +11,7 @@ module.exports = (req, res) => {
 
   let requestAccessToken
 
-  switch (req.params.service) {
+  switch (req.query.provider) {
     case 'gitlab':
       requestAccessToken = siteConfig =>
         oauth.requestGitLabAccessToken(
@@ -34,12 +34,12 @@ module.exports = (req, res) => {
   return staticman.getSiteConfig()
     .then(requestAccessToken)
     .then((accessToken) => {
-      const git = gitFactory.create(req.params.service, {
+      const git = gitFactory.create(req.query.provider, {
         oauthToken: accessToken
       })
 
       // TODO: Simplify this when v2 support is dropped.
-      const getUser = req.params.version === '2' && req.params.service === 'github'
+      const getUser = req.params.version === '2' && req.query.provider === 'github'
         ? git.api.users.get({}).then(({data}) => data)
         : git.getCurrentUser()
 
diff --git a/coverage/cobertura-coverage.xml b/coverage/cobertura-coverage.xml
index 9fb167bb..09ec016a 100644
--- a/coverage/cobertura-coverage.xml
+++ b/coverage/cobertura-coverage.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0" ?>
 <!DOCTYPE coverage SYSTEM "http://cobertura.sourceforge.net/xml/coverage-04.dtd">
-<coverage lines-valid="786" lines-covered="686" line-rate="0.8728" branches-valid="360" branches-covered="278" branch-rate="0.7722" timestamp="1534078804178" complexity="0" version="0.1">
+<coverage lines-valid="786" lines-covered="686" line-rate="0.8728" branches-valid="360" branches-covered="278" branch-rate="0.7722" timestamp="1536784015619" complexity="0" version="0.1">
   <sources>
     <source>/home/nick/Development/Javascript/staticman</source>
   </sources>
@@ -669,9 +669,9 @@
                 <line number="10" hits="20"/>
               </lines>
             </method>
-            <method name="(anonymous_1)" hits="61" signature="()V">
+            <method name="(anonymous_1)" hits="64" signature="()V">
               <lines>
-                <line number="13" hits="61"/>
+                <line number="13" hits="64"/>
               </lines>
             </method>
             <method name="(anonymous_2)" hits="10" signature="()V">
@@ -778,12 +778,12 @@
             <line number="7" hits="53" branch="false"/>
             <line number="8" hits="53" branch="false"/>
             <line number="10" hits="53" branch="false"/>
-            <line number="14" hits="61" branch="false"/>
-            <line number="16" hits="61" branch="false"/>
-            <line number="25" hits="61" branch="true" condition-coverage="100% (2/2)"/>
+            <line number="14" hits="64" branch="false"/>
+            <line number="16" hits="64" branch="false"/>
+            <line number="25" hits="64" branch="true" condition-coverage="100% (2/2)"/>
             <line number="26" hits="4" branch="false"/>
-            <line number="30" hits="57" branch="true" condition-coverage="100% (2/2)"/>
-            <line number="31" hits="56" branch="false"/>
+            <line number="30" hits="60" branch="true" condition-coverage="100% (2/2)"/>
+            <line number="31" hits="59" branch="false"/>
             <line number="36" hits="1" branch="false"/>
             <line number="41" hits="10" branch="false"/>
             <line number="48" hits="1" branch="false"/>
@@ -815,9 +815,9 @@
         </class>
         <class name="GitLab.js" filename="lib/GitLab.js" line-rate="0.8649" branch-rate="0.6923">
           <methods>
-            <method name="(anonymous_0)" hits="24" signature="()V">
+            <method name="(anonymous_0)" hits="21" signature="()V">
               <lines>
-                <line number="11" hits="24"/>
+                <line number="11" hits="21"/>
               </lines>
             </method>
             <method name="(anonymous_1)" hits="15" signature="()V">
@@ -928,11 +928,11 @@
             <line number="6" hits="47" branch="false"/>
             <line number="7" hits="47" branch="false"/>
             <line number="8" hits="47" branch="false"/>
-            <line number="12" hits="24" branch="false"/>
-            <line number="14" hits="24" branch="true" condition-coverage="100% (2/2)"/>
+            <line number="12" hits="21" branch="false"/>
+            <line number="14" hits="21" branch="true" condition-coverage="100% (2/2)"/>
             <line number="15" hits="3" branch="false"/>
-            <line number="19" hits="21" branch="true" condition-coverage="100% (2/2)"/>
-            <line number="20" hits="20" branch="false"/>
+            <line number="19" hits="18" branch="true" condition-coverage="100% (2/2)"/>
+            <line number="20" hits="17" branch="false"/>
             <line number="25" hits="1" branch="false"/>
             <line number="30" hits="15" branch="true" condition-coverage="75% (3/4)"/>
             <line number="31" hits="15" branch="false"/>
@@ -1093,8 +1093,8 @@
             <line number="4" hits="77" branch="false"/>
             <line number="6" hits="77" branch="false"/>
             <line number="7" hits="99" branch="true" condition-coverage="100% (2/2)"/>
-            <line number="9" hits="8" branch="false"/>
-            <line number="11" hits="91" branch="false"/>
+            <line number="9" hits="5" branch="false"/>
+            <line number="11" hits="94" branch="false"/>
           </lines>
         </class>
         <class name="Logger.js" filename="lib/Logger.js" line-rate="0" branch-rate="0">
diff --git a/test/unit/controllers/auth.test.js b/test/unit/controllers/auth.test.js
index 61e2fdfe..18f25743 100644
--- a/test/unit/controllers/auth.test.js
+++ b/test/unit/controllers/auth.test.js
@@ -18,17 +18,10 @@ beforeEach(() => {
 
 describe('Auth controller', () => {
   describe('GitHub', () => {
-    test('authenticates to GitHub with the given code and returns the authenticated user', () => {
-      const mockAccessToken = 'qwertyuiop'
-      const mockCode = '1q2w3e4r'
-      const mockUser = {
-        login: 'johndoe',
-        name: 'John Doe',
-        email: 'johndoe@test.com'
-      }
-
-      const siteConfig = helpers.getConfig()
+    const siteConfig = helpers.getConfig()
+    const mockCode = '1q2w3e4r'
 
+    const oauthRequest =
       nock(/github\.com/)
         .post('/login/oauth/access_token')
         .query({
@@ -37,6 +30,16 @@ describe('Auth controller', () => {
           code: mockCode,
           redirect_uri: siteConfig.get('githubAuth.redirectUri')
         })
+
+    test('authenticates to GitHub with the given code and returns the authenticated user', () => {
+      const mockAccessToken = 'qwertyuiop'
+      const mockUser = {
+        login: 'johndoe',
+        name: 'John Doe',
+        email: 'johndoe@test.com'
+      }
+
+      oauthRequest
         .reply(200, {
           access_token: mockAccessToken
         })
@@ -50,7 +53,8 @@ describe('Auth controller', () => {
 
       const reqWithQuery = Object.assign({}, req, {
         query: {
-          code: mockCode
+          code: mockCode,
+          provider: 'github'
         }
       })
 
@@ -64,21 +68,11 @@ describe('Auth controller', () => {
 
     test('authenticates to GitHub with the given code and returns the original GitHub user when using v2 API', () => {
       const mockAccessToken = 'qwertyuiop'
-      const mockCode = '1q2w3e4r'
       const mockUser = {
         login: 'johndoe'
       }
 
-      const siteConfig = helpers.getConfig()
-
-      nock(/github\.com/)
-        .post('/login/oauth/access_token')
-        .query({
-          client_id: siteConfig.get('githubAuth.clientId'),
-          client_secret: siteConfig.get('githubAuth.clientSecret'),
-          code: mockCode,
-          redirect_uri: siteConfig.get('githubAuth.redirectUri')
-        })
+      oauthRequest
         .reply(200, {
           access_token: mockAccessToken
         })
@@ -92,11 +86,11 @@ describe('Auth controller', () => {
 
       const reqWithQuery = Object.assign({}, req, {
         params: {
-          service: 'github',
           version: '2'
         },
         query: {
-          code: mockCode
+          code: mockCode,
+          provider: 'github'
         }
       })
 
@@ -108,25 +102,12 @@ describe('Auth controller', () => {
     })
 
     test('returns a 401 response when unable to get an access token from GitHub', () => {
-      const mockCode = '1q2w3e4r'
-      const siteConfig = helpers.getConfig()
-
-      nock(/github\.com/)
-        .post('/login/oauth/access_token')
-        .query({
-          client_id: siteConfig.get('githubAuth.clientId'),
-          client_secret: siteConfig.get('githubAuth.clientSecret'),
-          code: mockCode,
-          redirect_uri: siteConfig.get('githubAuth.redirectUri')
-        })
+      oauthRequest
         .reply(401, {
           error: 'invalid_code'
         })
 
       const reqWithQuery = Object.assign({}, req, {
-        params: {
-          service: 'github'
-        },
         query: {
           code: mockCode
         }
@@ -167,7 +148,8 @@ describe('Auth controller', () => {
 
       const reqWithQuery = Object.assign({}, req, {
         query: {
-          code: mockCode
+          code: mockCode,
+          provider: 'github'
         }
       })
 
@@ -180,17 +162,10 @@ describe('Auth controller', () => {
   })
 
   describe('GitLab', () => {
-    test('authenticates to GitLab with the given code and returns the authenticated user', () => {
-      const mockAccessToken = 'qwertyuiop'
-      const mockCode = '1q2w3e4r'
-      const mockUser = {
-        username: 'johndoe',
-        name: 'John Doe',
-        email: 'johndoe@test.com'
-      }
-
-      const siteConfig = helpers.getConfig()
+    const siteConfig = helpers.getConfig()
+    const mockCode = '1q2w3e4r'
 
+    const oauthRequest =
       nock(/gitlab\.com/)
         .post('/oauth/token')
         .query({
@@ -200,6 +175,16 @@ describe('Auth controller', () => {
           grant_type: 'authorization_code',
           redirect_uri: siteConfig.get('gitlabAuth.redirectUri')
         })
+
+    test('authenticates to GitLab with the given code and returns the authenticated user', () => {
+      const mockAccessToken = 'qwertyuiop'
+      const mockUser = {
+        username: 'johndoe',
+        name: 'John Doe',
+        email: 'johndoe@test.com'
+      }
+
+      oauthRequest
         .reply(200, {
           access_token: mockAccessToken
         })
@@ -213,11 +198,9 @@ describe('Auth controller', () => {
         .reply(200, mockUser)
 
       const reqWithQuery = Object.assign({}, req, {
-        params: {
-          service: 'gitlab'
-        },
         query: {
-          code: mockCode
+          code: mockCode,
+          provider: 'gitlab'
         }
       })
 
@@ -230,28 +213,15 @@ describe('Auth controller', () => {
     })
 
     test('returns a 401 response when unable to get an access token from GitLab', () => {
-      const mockCode = '1q2w3e4r'
-      const siteConfig = helpers.getConfig()
-
-      nock(/gitlab\.com/)
-        .post('/oauth/token')
-        .query({
-          client_id: siteConfig.get('gitlabAuth.clientId'),
-          client_secret: siteConfig.get('gitlabAuth.clientSecret'),
-          code: mockCode,
-          grant_type: 'authorization_code',
-          redirect_uri: siteConfig.get('gitlabAuth.redirectUri')
-        })
+      oauthRequest
         .reply(401, {
           error: 'invalid_code'
         })
 
       const reqWithQuery = Object.assign({}, req, {
-        params: {
-          service: 'gitlab'
-        },
         query: {
-          code: mockCode
+          code: mockCode,
+          provider: 'gitlab'
         }
       })
 
@@ -264,19 +234,8 @@ describe('Auth controller', () => {
 
     test('returns a 401 response when an incorrect access token is used for the GitLab API', () => {
       const mockAccessToken = 'qwertyuiop'
-      const mockCode = '1q2w3e4r'
-
-      const siteConfig = helpers.getConfig()
 
-      nock(/gitlab\.com/)
-        .post('/oauth/token')
-        .query({
-          client_id: siteConfig.get('gitlabAuth.clientId'),
-          client_secret: siteConfig.get('gitlabAuth.clientSecret'),
-          code: mockCode,
-          grant_type: 'authorization_code',
-          redirect_uri: siteConfig.get('gitlabAuth.redirectUri')
-        })
+      oauthRequest
         .reply(200, {
           access_token: mockAccessToken
         })
@@ -292,11 +251,9 @@ describe('Auth controller', () => {
         })
 
       const reqWithQuery = Object.assign({}, req, {
-        params: {
-          service: 'gitlab'
-        },
         query: {
-          code: mockCode
+          code: mockCode,
+          provider: 'gitlab'
         }
       })