diff --git a/libmctp.h b/libmctp.h
index 36e1483..46bda90 100644
--- a/libmctp.h
+++ b/libmctp.h
@@ -59,6 +59,7 @@
 void *mctp_pktbuf_alloc_start(struct mctp_pktbuf *pkt, size_t size);
 void *mctp_pktbuf_alloc_end(struct mctp_pktbuf *pkt, size_t size);
 int mctp_pktbuf_push(struct mctp_pktbuf *pkt, void *data, size_t len);
+void *mctp_pktbuf_pop(struct mctp_pktbuf *pkt, size_t len);
 
 /* MCTP core */
 struct mctp;