diff --git a/Objects/namespaceobject.c b/Objects/namespaceobject.c
index 2cc4ddd3c91daa..7082c6fd4657c6 100644
--- a/Objects/namespaceobject.c
+++ b/Objects/namespaceobject.c
@@ -121,6 +121,10 @@ namespace_repr(PyObject *ns)
             goto error;
     }
 
+    if (PyErr_Occurred()) {
+        goto error;
+    }
+
     separator = PyUnicode_FromString(", ");
     if (separator == NULL)
         goto error;