diff --git a/web/app/components/workflow/nodes/start/use-config.ts b/web/app/components/workflow/nodes/start/use-config.ts
index 3db3a6cd63..5edc29d384 100644
--- a/web/app/components/workflow/nodes/start/use-config.ts
+++ b/web/app/components/workflow/nodes/start/use-config.ts
@@ -21,8 +21,8 @@ const useConfig = (id: string, payload: StartNodeType) => {
   }, [inputs, setInputs])
 
   const handleAddVariable = useCallback((payload: InputVar) => {
-    const newInputs = produce(inputs, (draft: any) => {
-      draft.variables.push(`${Date.now()}`, payload)
+    const newInputs = produce(inputs, (draft: StartNodeType) => {
+      draft.variables.push(payload)
     })
     setInputs(newInputs)
   }, [inputs, setInputs])