diff --git a/CHANGELOG.md b/CHANGELOG.md
index ffd887a0..80ff9d8a 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,6 +7,7 @@ OCMockito now requires OCHamcrest v5.4.0 or higher.
 
 - Prevent argument captor from capturing values twice.
 - Prevent over-releasing mock object that is stubbed as return value for copy method.
+- Fixed crash when comparing literals to mocked protocols.
 
 
 Version 3.0.2
diff --git a/Source/OCMockito/Mocking/MKTProtocolMock.m b/Source/OCMockito/Mocking/MKTProtocolMock.m
index 91d0f49f..8204f883 100644
--- a/Source/OCMockito/Mocking/MKTProtocolMock.m
+++ b/Source/OCMockito/Mocking/MKTProtocolMock.m
@@ -53,4 +53,11 @@ - (BOOL)respondsToSelector:(SEL)aSelector
     return [self methodSignatureForSelector:aSelector] != nil;
 }
 
+#pragma mark Support being called as isEqual: argument
+
+- (BOOL)isNSArray__ { return NO; }
+- (BOOL)isNSDictionary__ { return NO; }
+- (BOOL)isNSNumber__ { return NO; }
+- (BOOL)isNSString__ { return NO; }
+
 @end
diff --git a/Source/Tests/MKTProtocolMockTests.m b/Source/Tests/MKTProtocolMockTests.m
index e77f262e..99940d71 100644
--- a/Source/Tests/MKTProtocolMockTests.m
+++ b/Source/Tests/MKTProtocolMockTests.m
@@ -147,4 +147,32 @@ - (void)testShouldNotRespondToUnrelatedSelector
     XCTAssertFalse([mockImplementer respondsToSelector:@selector(objectAtIndex:)]);
 }
 
+- (void)testArray_ShouldBeAbleToCompareToMock
+{
+    id obj = @[];
+    
+    XCTAssertFalse([obj isEqual:mockImplementer]);
+}
+
+- (void)testDictionary_ShouldBeAbleToCompareToMock
+{
+    id obj = @{};
+    
+    XCTAssertFalse([obj isEqual:mockImplementer]);
+}
+
+- (void)testNumber_ShouldBeAbleToCompareToMock
+{
+    id obj = @0;
+    
+    XCTAssertFalse([obj isEqual:mockImplementer]);
+}
+
+- (void)testString_ShouldBeAbleToCompareToMock
+{
+    id obj = @"";
+    
+    XCTAssertFalse([obj isEqual:mockImplementer]);
+}
+
 @end