diff --git a/packages/plugins/@nocobase/plugin-workflow/src/client/components/Calculation.tsx b/packages/plugins/@nocobase/plugin-workflow/src/client/components/Calculation.tsx
index 18768190c2e..f80bad7bf56 100644
--- a/packages/plugins/@nocobase/plugin-workflow/src/client/components/Calculation.tsx
+++ b/packages/plugins/@nocobase/plugin-workflow/src/client/components/Calculation.tsx
@@ -85,11 +85,6 @@ calculators.register('notEndsWith', {
   type: 'boolean',
   group: 'string',
 });
-calculators.register('concat', {
-  name: `{{t("Concatenate", { ns: "${NAMESPACE}" })}}`,
-  type: 'string',
-  group: 'string',
-});
 
 const calculatorGroups = [
   {