diff --git a/src/gsm/libosmogsm.map b/src/gsm/libosmogsm.map
index ae7c0a1..48757a7 100644
--- a/src/gsm/libosmogsm.map
+++ b/src/gsm/libosmogsm.map
@@ -583,12 +583,12 @@
 osmo_lu_type_names;
 osmo_cm_service_type_names;
 
-osmo_classmark_is_r99;
-osmo_classmark1_is_r99;
-osmo_classmark2_is_r99;
-osmo_classmark_supports_a5;
-osmo_classmark_a5_name;
-osmo_classmark_update;
+osmo_gsm48_classmark_is_r99;
+osmo_gsm48_classmark1_is_r99;
+osmo_gsm48_classmark2_is_r99;
+osmo_gsm48_classmark_supports_a5;
+osmo_gsm48_classmark_a5_name;
+osmo_gsm48_classmark_update;
 
 local: *;
 };