diff --git a/tests/errmsgs/tgcsafety.nim b/tests/errmsgs/tgcsafety.nim
index ffc6905b0..0ae60f200 100644
--- a/tests/errmsgs/tgcsafety.nim
+++ b/tests/errmsgs/tgcsafety.nim
@@ -6,7 +6,7 @@ type mismatch: got <AsyncHttpServer, Port, proc (req: Request): Future[system.vo
 but expected one of:
 proc serve(server: AsyncHttpServer; port: Port;
           callback: proc (request: Request): Future[void] {.closure, gcsafe.};
-          address = ""): Future[void]
+          address = ""): owned(Future[void])
   first type mismatch at position: 3
   required type: proc (request: Request): Future[system.void]{.closure, gcsafe.}
   but expression 'cb' is of type: proc (req: Request): Future[system.void]{.locks: <unknown>.}