diff --git a/src/gsm/libosmogsm.map b/src/gsm/libosmogsm.map
index a6ea47d..d99121e 100644
--- a/src/gsm/libosmogsm.map
+++ b/src/gsm/libosmogsm.map
@@ -176,6 +176,7 @@
 gsm0808_enc_cell_id_list2;
 gsm0808_dec_cell_id_list;
 gsm0808_dec_cell_id_list2;
+gsm0808_cell_id_list_add;
 gsm0808_chan_type_to_speech_codec;
 gsm0808_speech_codec_from_chan_type;
 gsm0808_speech_codec_type_names;