diff --git a/web/app/components/workflow/panel/global-variable-panel/index.tsx b/web/app/components/workflow/panel/global-variable-panel/index.tsx
index a421a1605a..6a455cf571 100644
--- a/web/app/components/workflow/panel/global-variable-panel/index.tsx
+++ b/web/app/components/workflow/panel/global-variable-panel/index.tsx
@@ -52,7 +52,7 @@ const Panel = () => {
     // is workflow
     ...((isWorkflowPage && !isChatMode) ? [{
       name: 'timestamp',
-      value_type: 'number' as const,
+      value_type: 'integer' as const,
       description: t('workflow.globalVar.fieldsDescription.triggerTimestamp'),
     }] : []),
   ]
diff --git a/web/app/components/workflow/types.ts b/web/app/components/workflow/types.ts
index 5fa6e80512..5ae8d530a8 100644
--- a/web/app/components/workflow/types.ts
+++ b/web/app/components/workflow/types.ts
@@ -178,7 +178,7 @@ export type ConversationVariable = {
 
 export type GlobalVariable = {
   name: string
-  value_type: 'string' | 'number'
+  value_type: 'string' | 'number' | 'integer'
   description: string
 }