diff --git a/openbsc/include/openbsc/ipaccess.h b/openbsc/include/openbsc/ipaccess.h
index 76acf7c..e101428 100644
--- a/openbsc/include/openbsc/ipaccess.h
+++ b/openbsc/include/openbsc/ipaccess.h
@@ -51,6 +51,9 @@
 int ipaccess_send_id_ack(int fd);
 int ipaccess_send_id_req(int fd);
 
+int ipaccess_idtag_parse(struct tlv_parsed *dec, unsigned char *buf, int len);
+
+
 /*
  * Firmware specific header
  */