diff --git a/src/gb/libosmogb.map b/src/gb/libosmogb.map
index 43ebbf8..75406c0 100644
--- a/src/gb/libosmogb.map
+++ b/src/gb/libosmogb.map
@@ -6,6 +6,7 @@
 bssgp_fc_init;
 bssgp_fc_ms_init;
 bssgp_msgb_alloc;
+bssgp_msgb_copy;
 bssgp_msgb_tlli_put;
 bssgp_parse_cell_id;
 bssgp_tx_bvc_block;