diff --git a/net/tap-bsd.c b/net/tap-bsd.c
index bf91bd0..53cdd9f 100644
--- a/net/tap-bsd.c
+++ b/net/tap-bsd.c
@@ -176,9 +176,8 @@
 }
 #endif /* __FreeBSD__ */
 
-int tap_set_sndbuf(int fd, const NetdevTapOptions *tap)
+void tap_set_sndbuf(int fd, const NetdevTapOptions *tap, Error **errp)
 {
-    return 0;
 }
 
 int tap_probe_vnet_hdr(int fd)