diff --git a/include/audio/codec.h b/include/audio/codec.h
index 6b69b2d04b1..8b4c896e41c 100644
--- a/include/audio/codec.h
+++ b/include/audio/codec.h
@@ -18,6 +18,7 @@
  * @brief Abstraction for audio codecs
  *
  * @defgroup audio_codec_interface Audio Codec Interface
+ * @ingroup audio_interface
  * @{
  */
 
diff --git a/include/audio/dmic.h b/include/audio/dmic.h
index 5d9053e4aac..9859cd2cb29 100644
--- a/include/audio/dmic.h
+++ b/include/audio/dmic.h
@@ -17,10 +17,18 @@
 #ifndef ZEPHYR_INCLUDE_AUDIO_DMIC_H_
 #define ZEPHYR_INCLUDE_AUDIO_DMIC_H_
 
+
+/**
+ * @defgroup audio_interface Audio
+ * @{
+ * @}
+ */
+
 /**
  * @brief Abstraction for digital microphones
  *
  * @defgroup audio_dmic_interface Digital Microphone Interface
+ * @ingroup audio_interface
  * @{
  */