diff --git a/qapi/qapi-visit-core.c b/qapi/qapi-visit-core.c
index ffffbf7..705eca9 100644
--- a/qapi/qapi-visit-core.c
+++ b/qapi/qapi-visit-core.c
@@ -298,7 +298,7 @@
     }
 
     if (strings[value] == NULL) {
-        error_set(errp, QERR_INVALID_PARAMETER, name ? name : "null");
+        error_set(errp, QERR_INVALID_PARAMETER, enum_str);
         g_free(enum_str);
         return;
     }