diff --git a/js/src/index.js b/js/src/index.js
index 9f527e19..881e5014 100644
--- a/js/src/index.js
+++ b/js/src/index.js
@@ -16,3 +16,4 @@ exports.key = require('./key')
 exports.stats = require('./stats')
 exports.repo = require('./repo')
 exports.bootstrap = require('./bootstrap')
+exports.types = require('./types')
diff --git a/js/src/types.js b/js/src/types.js
index fbba03e8..070b4003 100644
--- a/js/src/types.js
+++ b/js/src/types.js
@@ -15,39 +15,41 @@ const dirtyChai = require('dirty-chai')
 const expect = chai.expect
 chai.use(dirtyChai)
 
-describe('.types', function () {
-  let ipfs
+module.exports = (common) => {
+  describe('.types', function () {
+    let ipfs
 
-  before(function (done) {
-    // CI takes longer to instantiate the daemon, so we need to increase the
-    // timeout for the before step
-    this.timeout(60 * 1000)
+    before(function (done) {
+      // CI takes longer to instantiate the daemon, so we need to increase the
+      // timeout for the before step
+      this.timeout(60 * 1000)
 
-    common.setup((err, factory) => {
-      expect(err).to.not.exist()
-      factory.spawnNode((err, node) => {
+      common.setup((err, factory) => {
         expect(err).to.not.exist()
-        ipfs = node
-        done()
+        factory.spawnNode((err, node) => {
+          expect(err).to.not.exist()
+          ipfs = node
+          done()
+        })
       })
     })
-  })
 
-  after((done) => {
-    common.teardown(done)
-  })
+    after((done) => {
+      common.teardown(done)
+    })
 
-  it('types object', () => {
-    expect(ipfs.types).to.be.deep.equal({
-      Buffer: Buffer,
-      PeerId: PeerId,
-      PeerInfo: PeerInfo,
-      multiaddr: multiaddr,
-      multibase: multibase,
-      multihash: multihash,
-      CID: CID,
-      dagPB: dagPB,
-      dagCBOR: dagCBOR
+    it('types object', () => {
+      expect(ipfs.types).to.be.deep.equal({
+        Buffer: Buffer,
+        PeerId: PeerId,
+        PeerInfo: PeerInfo,
+        multiaddr: multiaddr,
+        multibase: multibase,
+        multihash: multihash,
+        CID: CID,
+        dagPB: dagPB,
+        dagCBOR: dagCBOR
+      })
     })
   })
-})
+}
diff --git a/js/src/util.js b/js/src/util.js
index e0c53a04..7e884d71 100644
--- a/js/src/util.js
+++ b/js/src/util.js
@@ -8,7 +8,7 @@ const chai = require('chai')
 const dirtyChai = require('dirty-chai')
 const expect = chai.expect
 chai.use(dirtyChai)
-util
+
 describe('.types', function () {
   let ipfs