diff --git a/src/libmsc/codec_mapping.c b/src/libmsc/codec_mapping.c
index 918428a..114abaa 100644
--- a/src/libmsc/codec_mapping.c
+++ b/src/libmsc/codec_mapping.c
@@ -105,7 +105,6 @@
 		.gsm0808_speech_codec = {
 			.fi = true,
 			.type = GSM0808_SCT_HR1,
-			.cfg = GSM0808_SC_CFG_DEFAULT_HR_AMR,
 		},
 		.perm_speech = GSM0808_PERM_HR1,
 		.frhr = CODEC_FRHR_HR,