--- a/bcrelay.c
+++ b/bcrelay.c
@@ -61,6 +61,10 @@
 // software to your hearts content.  You are free to redistribute it as
 // long as it is accompanied with the source and my credit is included.
 
+#ifndef MSG_TRYHARD
+	# define MSG_TRYHARD    MSG_DONTROUTE
+#endif
+
 #ifdef HAVE_CONFIG_H
 #include "config.h"
 #endif