diff --git a/Python/ceval.c b/Python/ceval.c
index ac995d7c178..24af419d29c 100644
--- a/Python/ceval.c
+++ b/Python/ceval.c
@@ -3852,7 +3852,7 @@ handle_eval_breaker:
                 _PyErr_Clear(tstate);
             }
             /* iterator ended normally */
-            assert(_Py_OPCODE(next_instr[INLINE_CACHE_ENTRIES_FOR_ITER + oparg] == END_FOR));
+            assert(_Py_OPCODE(next_instr[INLINE_CACHE_ENTRIES_FOR_ITER + oparg]) == END_FOR);
             STACK_SHRINK(1);
             Py_DECREF(iter);
             /* Skip END_FOR */