diff --git a/lib/jasmine-core/jasmine.js b/lib/jasmine-core/jasmine.js
index 2b3d9dcc..c2dfa78a 100644
--- a/lib/jasmine-core/jasmine.js
+++ b/lib/jasmine-core/jasmine.js
@@ -49,7 +49,7 @@ var getJasmineRequireObj = (function (jasmineGlobal) {
     j$.errors = jRequire.errors();
     j$.Any = jRequire.Any(j$);
     j$.Anything = jRequire.Anything(j$);
-    j$.CallTracker = jRequire.CallTracker();
+    j$.CallTracker = jRequire.CallTracker(j$);
     j$.MockDate = jRequire.MockDate();
     j$.Clock = jRequire.Clock();
     j$.DelayedFunctionScheduler = jRequire.DelayedFunctionScheduler();
@@ -1079,12 +1079,29 @@ getJasmineRequireObj().JsApiReporter = function() {
   return JsApiReporter;
 };
 
-getJasmineRequireObj().CallTracker = function() {
+getJasmineRequireObj().CallTracker = function(j$) {
 
   function CallTracker() {
     var calls = [];
+    var opts = {};
+
+    function argCloner(context) {
+      var clonedArgs = [];
+      var argsAsArray = j$.util.argsToArray(context.args);
+      for(var i = 0; i < argsAsArray.length; i++) {
+        if(Object.prototype.toString.apply(argsAsArray[i]).match(/^\[object/)) {
+          clonedArgs.push(j$.util.clone(argsAsArray[i]));
+        } else {
+          clonedArgs.push(argsAsArray[i]);
+        }
+      }
+      context.args = clonedArgs;
+    }
 
     this.track = function(context) {
+      if(opts.cloneArgs) {
+        argCloner(context);
+      }
       calls.push(context);
     };
 
@@ -1125,6 +1142,11 @@ getJasmineRequireObj().CallTracker = function() {
     this.reset = function() {
       calls = [];
     };
+
+    this.saveArgumentsByValue = function() {
+      opts.cloneArgs = true;
+    };
+
   }
 
   return CallTracker;
diff --git a/spec/core/CallTrackerSpec.js b/spec/core/CallTrackerSpec.js
index ffccc538..f6f64db5 100644
--- a/spec/core/CallTrackerSpec.js
+++ b/spec/core/CallTrackerSpec.js
@@ -102,4 +102,19 @@ describe("CallTracker", function() {
     expect(callTracker.all()).toEqual([]);
     expect(callTracker.mostRecent()).toBeFalsy();
   });
+
+  it("allows object arguments to be shallow cloned", function() {
+    var callTracker = new jasmineUnderTest.CallTracker();
+    callTracker.saveArgumentsByValue();
+
+    var objectArg = {"foo": "bar"},
+        arrayArg = ["foo", "bar"];
+
+    callTracker.track({object: {}, args: [objectArg, arrayArg, false, undefined, null, NaN, "", 0, 1.0]});
+
+    expect(callTracker.mostRecent().args[0]).not.toBe(objectArg);
+    expect(callTracker.mostRecent().args[0]).toEqual(objectArg);
+    expect(callTracker.mostRecent().args[1]).not.toBe(arrayArg);
+    expect(callTracker.mostRecent().args[1]).toEqual(arrayArg);
+  });
 });
diff --git a/src/core/CallTracker.js b/src/core/CallTracker.js
index b80e6a86..aead1403 100644
--- a/src/core/CallTracker.js
+++ b/src/core/CallTracker.js
@@ -1,9 +1,26 @@
-getJasmineRequireObj().CallTracker = function() {
+getJasmineRequireObj().CallTracker = function(j$) {
 
   function CallTracker() {
     var calls = [];
+    var opts = {};
+
+    function argCloner(context) {
+      var clonedArgs = [];
+      var argsAsArray = j$.util.argsToArray(context.args);
+      for(var i = 0; i < argsAsArray.length; i++) {
+        if(Object.prototype.toString.apply(argsAsArray[i]).match(/^\[object/)) {
+          clonedArgs.push(j$.util.clone(argsAsArray[i]));
+        } else {
+          clonedArgs.push(argsAsArray[i]);
+        }
+      }
+      context.args = clonedArgs;
+    }
 
     this.track = function(context) {
+      if(opts.cloneArgs) {
+        argCloner(context);
+      }
       calls.push(context);
     };
 
@@ -44,6 +61,11 @@ getJasmineRequireObj().CallTracker = function() {
     this.reset = function() {
       calls = [];
     };
+
+    this.saveArgumentsByValue = function() {
+      opts.cloneArgs = true;
+    };
+
   }
 
   return CallTracker;
diff --git a/src/core/requireCore.js b/src/core/requireCore.js
index 571cf48a..51c82285 100644
--- a/src/core/requireCore.js
+++ b/src/core/requireCore.js
@@ -27,7 +27,7 @@ var getJasmineRequireObj = (function (jasmineGlobal) {
     j$.errors = jRequire.errors();
     j$.Any = jRequire.Any(j$);
     j$.Anything = jRequire.Anything(j$);
-    j$.CallTracker = jRequire.CallTracker();
+    j$.CallTracker = jRequire.CallTracker(j$);
     j$.MockDate = jRequire.MockDate();
     j$.Clock = jRequire.Clock();
     j$.DelayedFunctionScheduler = jRequire.DelayedFunctionScheduler();