diff --git a/web/app/components/workflow/hooks/use-checklist.ts b/web/app/components/workflow/hooks/use-checklist.ts
index 35ff86044d..b02f6bc8e8 100644
--- a/web/app/components/workflow/hooks/use-checklist.ts
+++ b/web/app/components/workflow/hooks/use-checklist.ts
@@ -113,7 +113,7 @@ export const useChecklist = (nodes: Node[], edges: Edge[]) => {
         if (!errorMessage) {
           const availableVars = map[node.id].availableVars
 
-          usedVars.forEach((variable) => {
+          for (const variable of usedVars) {
             const isEnv = isENV(variable)
             const isConvVar = isConversationVar(variable)
             const isSysVar = isSystemVar(variable)