diff --git a/Source/OCMockito/Core/MKTMockingProgress.m b/Source/OCMockito/Core/MKTMockingProgress.m
index 2aee4034..62b7b168 100644
--- a/Source/OCMockito/Core/MKTMockingProgress.m
+++ b/Source/OCMockito/Core/MKTMockingProgress.m
@@ -75,4 +75,12 @@ - (MKTInvocationMatcher *)pullInvocationMatcher
     return result;
 }
 
+- (void)setOngoingStubbing:(MKTOngoingStubbing *)ongoingStubbing
+{
+    @synchronized (self)
+    {
+        _ongoingStubbing = ongoingStubbing;
+    }
+}
+
 @end