diff --git a/web/app/components/workflow/nodes/llm/use-config.ts b/web/app/components/workflow/nodes/llm/use-config.ts
index d09bf211c6..80d5396721 100644
--- a/web/app/components/workflow/nodes/llm/use-config.ts
+++ b/web/app/components/workflow/nodes/llm/use-config.ts
@@ -85,7 +85,8 @@ const useConfig = (id: string, payload: LLMNodeType) => {
   }, [isChatModel])
   useEffect(() => {
     const isReady = defaultConfig && Object.keys(defaultConfig).length > 0
-    if (isReady) {
+
+    if (isReady && !inputs.prompt_template) {
       const newInputs = produce(inputs, (draft) => {
         appendDefaultPromptConfig(draft, defaultConfig)
       })