diff --git a/src/gsm/libosmogsm.map b/src/gsm/libosmogsm.map
index 96779d2..5eed5b5 100644
--- a/src/gsm/libosmogsm.map
+++ b/src/gsm/libosmogsm.map
@@ -201,6 +201,7 @@
 gsm0808_chan_type_to_speech_codec;
 gsm0808_speech_codec_from_chan_type;
 gsm0808_speech_codec_type_names;
+gsm0808_permitted_speech_names;
 gsm0808_channel_type_name;
 gsm0808_lcls_config_names;
 gsm0808_lcls_control_names;