diff --git a/Python/_warnings.c b/Python/_warnings.c
index 6a970bb..1f0f58e 100644
--- a/Python/_warnings.c
+++ b/Python/_warnings.c
@@ -304,6 +304,8 @@
     }
     if (rc == 1) {
         text = PyObject_Str(message);
+        if (text == NULL)
+            goto cleanup;
         category = (PyObject*)message->ob_type;
     }
     else {