diff --git a/dlls/winsock/socket.c b/dlls/winsock/socket.c
index 248e2c32981..027ea2fc47c 100644
--- a/dlls/winsock/socket.c
+++ b/dlls/winsock/socket.c
@@ -2091,8 +2091,8 @@ static struct WIN_servent* __ws_getservbyport(int port, const char* proto, int d
 		else SetLastError(WSAENOBUFS);
 	    }
 	    else {
-                MESSAGE("service on port %d protocol %s not found; You might want to add "
-                        "add this to /etc/services\n", ntohl(port),
+                MESSAGE("service on port %ul protocol %s not found; You might want to add "
+                        "this to /etc/services\n", (unsigned long)ntohl(port),
                         proto ? debugstr_a(pwsi->buffer) : "*"); 
                 SetLastError(WSANO_DATA);
             }