diff --git a/net/tap-bsd.c b/net/tap-bsd.c
index 01c705b..cfc7a28 100644
--- a/net/tap-bsd.c
+++ b/net/tap-bsd.c
@@ -145,3 +145,14 @@
                         int tso6, int ecn, int ufo)
 {
 }
+
+int tap_fd_enable(int fd)
+{
+    return -1;
+}
+
+int tap_fd_disable(int fd)
+{
+    return -1;
+}
+