diff --git a/mlir/include/mlir/IR/PatternMatch.h b/mlir/include/mlir/IR/PatternMatch.h
index 12bf196bb58e5..200eae8c3b71c 100644
--- a/mlir/include/mlir/IR/PatternMatch.h
+++ b/mlir/include/mlir/IR/PatternMatch.h
@@ -1102,10 +1097,9 @@ void assertArgs(PatternRewriter &rewriter, ArrayRef<PDLValue> values,
   auto errorFn = [&](const Twine &msg) -> LogicalResult {
     llvm::report_fatal_error(msg);
   };
-  (void)std::initializer_list<int>{
-      (assert(succeeded(ProcessPDLValue<typename FnTraitsT::template arg_t<
-                            I + 1>>::verifyAsArg(errorFn, values[I], I))),
-       0)...};
+  assert((succeeded(ProcessPDLValue<typename FnTraitsT::template arg_t<I + 1>>::
+                        verifyAsArg(errorFn, values[I], I)) &&
+          ...));
 #endif
 }