1 files changed, 3 insertions, 1 deletions
diff --git a/Modules/_testinternalcapi.c b/Modules/_testinternalcapi.c
index 3834f00..bcc431a 100644
--- a/Modules/_testinternalcapi.c
+++ b/Modules/_testinternalcapi.c
@@ -977,7 +977,9 @@ set_optimizer(PyObject *self, PyObject *opt)
     if (opt == Py_None) {
         opt = NULL;
     }
-    PyUnstable_SetOptimizer((_PyOptimizerObject*)opt);
+    if (PyUnstable_SetOptimizer((_PyOptimizerObject*)opt) < 0) {
+        return NULL;
+    }
     Py_RETURN_NONE;
 }