diff --git a/include/mysql_com.h b/include/mysql_com.h
index 86843c8b632..d60426ae8e3 100644
--- a/include/mysql_com.h
+++ b/include/mysql_com.h
@@ -353,8 +353,10 @@ my_bool	net_write_command(NET *net,unsigned char command,
 int	net_real_write(NET *net,const char *packet,unsigned long len);
 unsigned long my_net_read(NET *net);
 
+#ifdef _global_h
 void my_net_set_write_timeout(NET *net, uint timeout);
 void my_net_set_read_timeout(NET *net, uint timeout);
+#endif
 
 /*
   The following function is not meant for normal usage