diff --git a/lib/route-helper.js b/lib/route-helper.js
index 6cf5b4a..f52ed4c 100644
--- a/lib/route-helper.js
+++ b/lib/route-helper.js
@@ -61,7 +61,12 @@ var routeHelper = module.exports = {
       if (typeof arg.http === 'function') return false;
       // Don't show arguments set to the incoming http request.
       // Please note that body needs to be shown, such as User.create().
-      if (arg.http.source === 'req') return false;
+      if (arg.http.source === 'req' ||
+        arg.http.source === 'res' ||
+        arg.http.source === 'context') {
+
+        return false;
+      }
       return true;
     });
 
diff --git a/test/route-helper.test.js b/test/route-helper.test.js
index 52e21b8..6714480 100644
--- a/test/route-helper.test.js
+++ b/test/route-helper.test.js
@@ -109,6 +109,40 @@ describe('route-helper', function() {
     });
     expect(doc.operations[0].parameters[0].description).to.equal('line1\nline2');
   });
+
+  it('correctly does not include context params', function() {
+    var doc = createAPIDoc({
+      accepts: [
+        {arg: 'ctx', http: {source: 'context'}}
+      ],
+      path: '/test'
+    });
+    var params = doc.operations[0].parameters;
+    expect(params.length).to.equal(0);
+  });
+
+  it('correctly does not include request params', function() {
+    var doc = createAPIDoc({
+      accepts: [
+        {arg: 'req', http: {source: 'req'}}
+      ],
+      path: '/test'
+    });
+    var params = doc.operations[0].parameters;
+    expect(params.length).to.equal(0);
+  });
+
+  it('correctly does not include response params', function() {
+    var doc = createAPIDoc({
+      accepts: [
+        {arg: 'res', http: {source: 'res'}}
+      ],
+      path: '/test'
+    });
+    var params = doc.operations[0].parameters;
+    expect(params.length).to.equal(0);
+  });
+
 });
 
 // Easy wrapper around createRoute