diff --git a/src/ble/gatt-service/le_audio.h b/src/ble/gatt-service/le_audio.h
index c676fc4bc..a159e861c 100644
--- a/src/ble/gatt-service/le_audio.h
+++ b/src/ble/gatt-service/le_audio.h
@@ -133,6 +133,7 @@ typedef enum {
 
 // GA Codec_Specific_Configuration LTV structures
 typedef enum {
+    LE_AUDIO_CODEC_CONFIGURATION_TYPE_UNDEFINED = 0x00,
     LE_AUDIO_CODEC_CONFIGURATION_TYPE_SAMPLING_FREQUENCY = 0x01,
     LE_AUDIO_CODEC_CONFIGURATION_TYPE_FRAME_DURATION,
     LE_AUDIO_CODEC_CONFIGURATION_TYPE_AUDIO_CHANNEL_ALLOCATION,