diff --git a/bricks/llm.js b/bricks/llm.js
index 0237994..df125dc 100644
--- a/bricks/llm.js
+++ b/bricks/llm.js
@@ -258,7 +258,7 @@ bricks.LlmModel = class extends bricks.JsWidget {
 		return this.llm_message_format || {role:'assistant', content:"${content}"}
 	}
 	async query_task_status(mout, taskid){
-		var pt = this.opts.period_time || 30 * 1000;
+		var pt = this.opts.period_time || 30;
 		while (1){
 		var hj = new bricks.HttpJson()
 		var d = {