diff --git a/src/channels/chan_voicemngr.c b/src/channels/chan_voicemngr.c
index 607d11cfdfa3fe24411678741c8058054613b855..10033cb9bc3709eb769775884f65034d6db40a56 100644
--- a/src/channels/chan_voicemngr.c
+++ b/src/channels/chan_voicemngr.c
@@ -389,7 +389,7 @@ struct config_update_struct {
 	// add more if needed
 };
 
-static struct voicemngr_codec* voicemngr_codec_get(char *name)
+static struct voicemngr_codec* voicemngr_codec_get(const char *name)
 {
 	for (int i=0; i<VOICEMNGR_CODECS_NUM; i++)
 		if (!strcmp(voicemngr_codecs[i].name, name))