diff --git a/src/core/libosmocore.map b/src/core/libosmocore.map
index 984046b..bd1b3d9 100644
--- a/src/core/libosmocore.map
+++ b/src/core/libosmocore.map
@@ -49,7 +49,9 @@
 gsmtap_source_add_sink_fd;
 gsmtap_source_free;
 gsmtap_source_init;
+gsmtap_source_init2;
 gsmtap_source_init_fd;
+gsmtap_source_init_fd2;
 gsmtap_type_names;
 log_add_target;
 log_category_name;