diff --git a/src/gsm/libosmogsm.map b/src/gsm/libosmogsm.map
index c68cf2a..d597f10 100644
--- a/src/gsm/libosmogsm.map
+++ b/src/gsm/libosmogsm.map
@@ -46,6 +46,7 @@
 gprs_tlli_type;
 gprs_tmsi2tlli;
 gprs_ms_net_cap_gea_supported;
+gprs_msgt_gmm_names;
 
 gsm48_gmm_cause_names;
 gsm48_gsm_cause_names;