diff --git a/monitor/misc.c b/monitor/misc.c
index bb102df823..7ffe6f7a84 100644
--- a/monitor/misc.c
+++ b/monitor/misc.c
@@ -447,7 +447,7 @@ void qmp_client_migrate_info(const char *protocol, const char *hostname,
         return;
     }
 
-    error_setg(errp, QERR_INVALID_PARAMETER_VALUE, "protocol", "spice");
+    error_setg(errp, QERR_INVALID_PARAMETER_VALUE, "protocol", "'spice'");
 }
 
 static void hmp_logfile(Monitor *mon, const QDict *qdict)