diff --git a/src/core/test.h b/src/core/test.h
index fa126e1f9..26caeae9c 100644
--- a/src/core/test.h
+++ b/src/core/test.h
@@ -115,7 +115,7 @@ private:
 
 #define NS_TEST_ASSERT_EQUAL_FILELINE(got, expected, file, line)    \
   do {                                                              \
-    if ((got) != (expected))                                        \
+    if (! ((got) == (expected)))                                    \
       {                                                             \
         Failure () << file << ":" <<line                            \
                    << ": expected " << (expected)                   \