diff --git a/src/gsm/libosmogsm.map b/src/gsm/libosmogsm.map
index c314c20..584d761 100644
--- a/src/gsm/libosmogsm.map
+++ b/src/gsm/libosmogsm.map
@@ -478,6 +478,7 @@
 
 gsm_milenage;
 gsm_septet_encode;
+gsm_septet_pack;
 gsm_septets2octets;
 
 lapd_dl_exit;