diff --git a/src/ngResource/resource.js b/src/ngResource/resource.js
index 8b5944da9f60..3152e3f9a98c 100644
--- a/src/ngResource/resource.js
+++ b/src/ngResource/resource.js
@@ -636,6 +636,7 @@ angular.module('ngResource', ['ng']).
           var data = extend({}, this);
           delete data.$promise;
           delete data.$resolved;
+          delete data.$cancelRequest;
           return data;
         };
 
diff --git a/test/ngResource/resourceSpec.js b/test/ngResource/resourceSpec.js
index 2747253dbe1c..0ac2c0d49404 100644
--- a/test/ngResource/resourceSpec.js
+++ b/test/ngResource/resourceSpec.js
@@ -753,6 +753,26 @@ describe('basic usage', function() {
     expect(json).toEqual({id: 123, number: '9876', $myProp: 'still here'});
   });
 
+  it('should not include $cancelRequest when resource is toJson\'ed', function() {
+    $httpBackend.whenGET('/CreditCard').respond({});
+
+    var CreditCard = $resource('/CreditCard', {}, {
+      get: {
+        method: 'GET',
+        cancellable: true
+      }
+    });
+
+    var creditCard = CreditCard.get();
+
+    expect(creditCard.$cancelRequest).toBeDefined();
+
+    $httpBackend.flush();
+
+    var json = creditCard.toJSON();
+    expect(json.$cancelRequest).not.toBeDefined();
+  });
+
   describe('promise api', function() {
 
     var $rootScope;