diff --git a/web/app/components/workflow/hooks/use-nodes-available-var-list.ts b/web/app/components/workflow/hooks/use-nodes-available-var-list.ts
index fd07ca26b1..fa3aaa07e8 100644
--- a/web/app/components/workflow/hooks/use-nodes-available-var-list.ts
+++ b/web/app/components/workflow/hooks/use-nodes-available-var-list.ts
@@ -31,8 +31,8 @@ const getNodeInfo = (nodeId: string, nodes: Node[]) => {
 const useNodesAvailableVarList = (nodes: Node[], {
   onlyLeafNodeVar,
   filterVar,
-  hideEnv,
-  hideChatVar,
+  hideEnv = false,
+  hideChatVar = false,
   passedInAvailableNodes,
 }: Params = {
     onlyLeafNodeVar: false,