diff --git a/CHANGELOG.md b/CHANGELOG.md
index 01d89b31..09e66d36 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,12 +2,10 @@
 
 #### Features
 
-* Your contribution here.
+* [#434](https://github.com/ruby-grape/grape-swagger/pull/434): Add summary to the operation object generator to be more compliant with [OpenAPI v2](https://github.com/OAI/OpenAPI-Specification/blob/master/versions/2.0.md#operation-object) - [@aschuster3](https://github.com/aschuster3).
 
 #### Fixes
 
-* Your contribution here.
-
 ### 0.20.4 (May 16, 2016)
 
 #### Features
diff --git a/README.md b/README.md
index 4c357a51..667ea916 100644
--- a/README.md
+++ b/README.md
@@ -442,6 +442,32 @@ end
 ```
 
 
+#### Overriding the route summary
+
+By default, the route summary is filled with the value supplied to `desc`.
+
+```ruby
+namespace 'order' do
+  desc 'This will be your summary'
+  get :order_id do
+    ...
+  end
+end
+```
+
+To override the summary, add `summary: '[string]'` after the description.
+
+```ruby
+namespace 'order' do
+  desc 'This will be your summary',
+    summary: 'Now this is your summary!'
+  get :order_id do
+    ...
+  end
+end
+```
+
+
 #### Expose nested namespace as standalone route
 
 Use the `nested: false` property in the `swagger` option to make nested namespaces appear as standalone resources.
diff --git a/spec/support/model_parsers/entity_parser.rb b/spec/support/model_parsers/entity_parser.rb
index e665f714..ff6a57fb 100644
--- a/spec/support/model_parsers/entity_parser.rb
+++ b/spec/support/model_parsers/entity_parser.rb
@@ -292,7 +292,6 @@ class RecursiveModel < Grape::Entity
         'QueryInput' => {
           'type' => 'object',
           'properties' => { 'elements' => { 'type' => 'array', 'items' => { '$ref' => '#/definitions/QueryInputElement' }, 'description' => 'Set of configuration' } },
-          'summary' => 'nested route inside namespace',
           'description' => 'nested route inside namespace'
         },
         'QueryInputElement' => {
@@ -302,7 +301,6 @@ class RecursiveModel < Grape::Entity
         'ApiError' => {
           'type' => 'object',
           'properties' => { 'code' => { 'type' => 'integer', 'format' => 'int32', 'description' => 'status code' }, 'message' => { 'type' => 'string', 'description' => 'error message' } },
-          'summary' => 'This gets Things.',
           'description' => 'This gets Things.'
         },
         'Something' => {
@@ -313,7 +311,6 @@ class RecursiveModel < Grape::Entity
             'links' => { 'type' => 'link' },
             'others' => { 'type' => 'text' }
           },
-          'summary' => 'This gets Things.',
           'description' => 'This gets Things.'
         }
       }
diff --git a/spec/support/model_parsers/representable_parser.rb b/spec/support/model_parsers/representable_parser.rb
index 955abc53..2f8be824 100644
--- a/spec/support/model_parsers/representable_parser.rb
+++ b/spec/support/model_parsers/representable_parser.rb
@@ -361,7 +361,6 @@ class RecursiveModel < Representable::Decorator
         'QueryInput' => {
           'type' => 'object',
           'properties' => { 'elements' => { 'type' => 'array', 'items' => { '$ref' => '#/definitions/QueryInputElement' }, 'description' => 'Set of configuration' } },
-          'summary' => 'nested route inside namespace',
           'description' => 'nested route inside namespace'
         },
         'QueryInputElement' => {
@@ -371,7 +370,6 @@ class RecursiveModel < Representable::Decorator
         'ApiError' => {
           'type' => 'object',
           'properties' => { 'code' => { 'type' => 'integer', 'format' => 'int32', 'description' => 'status code' }, 'message' => { 'type' => 'string', 'description' => 'error message' } },
-          'summary' => 'This gets Things.',
           'description' => 'This gets Things.'
         },
         'Something' => {
@@ -382,7 +380,6 @@ class RecursiveModel < Representable::Decorator
             'links' => { 'type' => 'array', 'items' => { 'description' => '', 'type' => 'link' } },
             'others' => { 'description' => '', 'type' => 'text' }
           },
-          'summary' => 'This gets Things.',
           'description' => 'This gets Things.'
         }
       }