diff --git a/spec/core/matchers/toHaveBeenCalledOnceWithSpec.js b/spec/core/matchers/toHaveBeenCalledOnceWithSpec.js
index 97fdaf9c..722a05f1 100644
--- a/spec/core/matchers/toHaveBeenCalledOnceWithSpec.js
+++ b/spec/core/matchers/toHaveBeenCalledOnceWithSpec.js
@@ -15,7 +15,8 @@ describe("toHaveBeenCalledOnceWith", function () {
 
   it("passes through the custom equality testers", function () {
     var util = {
-      contains: jasmine.createSpy('delegated-contains').and.returnValue(false)
+      contains: jasmine.createSpy('delegated-contains').and.returnValue(false),
+      equals: jasmineUnderTest.matchersUtil.equals
     },
       customEqualityTesters = [function () { return true; }],
       matcher = jasmineUnderTest.matchers.toHaveBeenCalledOnceWith(util, customEqualityTesters),