1 files changed, 1 insertions, 0 deletions
diff --git a/Python/ceval.c b/Python/ceval.c
index deb1318..230198b 100644
--- a/Python/ceval.c
+++ b/Python/ceval.c
@@ -2698,6 +2698,7 @@ handle_eval_breaker:
         }
 
         TARGET(YIELD_VALUE) {
+            assert(oparg == STACK_LEVEL());
             assert(frame->is_entry);
             PyObject *retval = POP();
             _PyFrame_GetGenerator(frame)->gi_frame_state = FRAME_SUSPENDED;