diff --git a/include/osmocom/abis/lapd.h b/include/osmocom/abis/lapd.h
index 847a597..2457cde 100644
--- a/include/osmocom/abis/lapd.h
+++ b/include/osmocom/abis/lapd.h
@@ -35,6 +35,7 @@
 	struct lapd_profile profile; /* must be a copy */
 
 	struct llist_head tei_list;	/* list of TEI in this LAPD instance */
+	int pcap_fd;			/* PCAP file descriptor */
 };
 
 enum lapd_recv_errors {