diff --git a/gcc/testsuite/g++.dg/cpp23/auto-fncast11.C b/gcc/testsuite/g++.dg/cpp23/auto-fncast11.C
index 669dda14035..1ae0426264c 100644
--- a/gcc/testsuite/g++.dg/cpp23/auto-fncast11.C
+++ b/gcc/testsuite/g++.dg/cpp23/auto-fncast11.C
@@ -16,4 +16,4 @@ static_assert(requires { requires auto(auto(true)); });
 static_assert(!requires { requires auto(false); });
 static_assert(!requires { requires auto(auto(false)); });
 
-auto f() requires (auto(false)); // { dg-error "constraints on non-templated" }
+auto f() requires (auto(false)); // { dg-error "constraints on a non-templated" }