diff --git a/isisd/isis_pfpacket.c b/isisd/isis_pfpacket.c
index e5589ae..4bc8717 100644
--- a/isisd/isis_pfpacket.c
+++ b/isisd/isis_pfpacket.c
@@ -129,6 +129,7 @@
 	    sizeof (struct sockaddr_ll)) < 0)
     {
       zlog_warn ("open_packet_socket(): bind() failed: %s", safe_strerror (errno));
+      close (fd);
       return ISIS_WARNING;
     }