diff --git a/mlir/include/mlir/IR/StorageUniquerSupport.h b/mlir/include/mlir/IR/StorageUniquerSupport.h
index d6ccbbd857994..2162a74a51580 100644
--- a/mlir/include/mlir/IR/StorageUniquerSupport.h
+++ b/mlir/include/mlir/IR/StorageUniquerSupport.h
@@ -226,9 +226,7 @@ class StorageUserBase : public BaseT, public Traits<ConcreteT>... {
 
   /// Default implementation that just returns success.
   template <typename... Args>
-  static LogicalResult
-  verifyInvariants(function_ref<InFlightDiagnostic()> emitErrorFn,
-                   Args... args) {
+  static LogicalResult verifyInvariants(Args... args) {
     return success();
   }