diff --git a/web/app/components/workflow/nodes/list-operator/components/filter-condition.tsx b/web/app/components/workflow/nodes/list-operator/components/filter-condition.tsx
index cdbb5965f4..f35936cdc8 100644
--- a/web/app/components/workflow/nodes/list-operator/components/filter-condition.tsx
+++ b/web/app/components/workflow/nodes/list-operator/components/filter-condition.tsx
@@ -109,7 +109,7 @@ const FilterCondition: FC<Props> = ({
       <div className='flex space-x-1'>
         <ConditionOperator
           className='h-8 bg-components-input-bg-normal'
-          varType={expectedVarType ?? VarType.string}
+          varType={expectedVarType ?? varType ?? VarType.string}
           value={condition.comparison_operator}
           onSelect={handleChange('comparison_operator')}
           file={hasSubVariable ? { key: condition.key } : undefined}