diff --git a/Lib/test/test_struct.py b/Lib/test/test_struct.py
index d226115..3ede005 100644
--- a/Lib/test/test_struct.py
+++ b/Lib/test/test_struct.py
@@ -482,7 +482,7 @@
     except OverflowError:
         pass
     else:
-        TestFailed("expected OverflowError")
+        raise TestFailed("expected OverflowError")
 
 test_705836()