diff --git a/lib/jasmine-core/jasmine.js b/lib/jasmine-core/jasmine.js
index 5fafa405..c9866039 100644
--- a/lib/jasmine-core/jasmine.js
+++ b/lib/jasmine-core/jasmine.js
@@ -821,7 +821,7 @@ getJasmineRequireObj().Env = function(j$) {
         message += error.message || error;
       }
 
-      currentSpec.addExpectationResult(false, {
+      currentRunnable().addExpectationResult(false, {
         matcherName: '',
         passed: false,
         expected: '',
@@ -1490,6 +1490,7 @@ getJasmineRequireObj().MockDate = function() {
     }
 
     function createDateProperties() {
+      FakeDate.prototype = GlobalDate.prototype;
 
       FakeDate.now = function() {
         if (GlobalDate.now) {
diff --git a/spec/core/ClockSpec.js b/spec/core/ClockSpec.js
index 18d281bf..a7acb244 100644
--- a/spec/core/ClockSpec.js
+++ b/spec/core/ClockSpec.js
@@ -389,7 +389,7 @@ describe("Clock (acceptance)", function() {
 
     clock.tick(6);
     expect(delayedFn1).toHaveBeenCalled();
-    expect(delayedFn2).toHaveBeenCalled();  
+    expect(delayedFn2).toHaveBeenCalled();
   });
 
   it("does not mock the Date object by default", function() {
diff --git a/spec/core/MockDateSpec.js b/spec/core/MockDateSpec.js
index 250fe457..f8f3bb56 100644
--- a/spec/core/MockDateSpec.js
+++ b/spec/core/MockDateSpec.js
@@ -75,6 +75,7 @@ describe("FakeDate", function() {
 
     mockDate.install();
     expect(new fakeGlobal.Date()).toEqual(jasmine.any(Date));
+    expect(new fakeGlobal.Date() instanceof fakeGlobal.Date).toBe(true);
   });
 
   it("fakes current time when using Date.now()", function() {
diff --git a/src/core/MockDate.js b/src/core/MockDate.js
index db347bbe..e7914fb2 100644
--- a/src/core/MockDate.js
+++ b/src/core/MockDate.js
@@ -61,6 +61,7 @@ getJasmineRequireObj().MockDate = function() {
     }
 
     function createDateProperties() {
+      FakeDate.prototype = GlobalDate.prototype;
 
       FakeDate.now = function() {
         if (GlobalDate.now) {