diff --git a/packages/core/src/tools/ripGrep.ts b/packages/core/src/tools/ripGrep.ts
index f372ef98b9..c7855c2808 100644
--- a/packages/core/src/tools/ripGrep.ts
+++ b/packages/core/src/tools/ripGrep.ts
@@ -633,7 +633,7 @@ export class RipGrepTool extends BaseDeclarativeTool<
             minimum: 1,
           },
         },
-        required: ['pattern', 'total_max_matches'],
+        required: ['pattern'],
         type: 'object',
       },
       messageBus,