diff --git a/vendor/libtuntap-master/tuntap-unix.c b/vendor/libtuntap-master/tuntap-unix.c
index cfb729b2b..564f935ae 100644
--- a/vendor/libtuntap-master/tuntap-unix.c
+++ b/vendor/libtuntap-master/tuntap-unix.c
@@ -381,7 +381,7 @@ tuntap_set_debug(struct device *dev, int set)
     return 0;
   }
 
-#ifndef Darwin
+#if defined(__linux__)
   if(ioctl(dev->tun_fd, TUNSETDEBUG, &set) == -1)
   {
     switch(set)