diff --git a/boards/arm/cxd56xx/common/src/cxd56_audio.c b/boards/arm/cxd56xx/common/src/cxd56_audio.c
index 692fa160f14..023b8c0cd0e 100644
--- a/boards/arm/cxd56xx/common/src/cxd56_audio.c
+++ b/boards/arm/cxd56xx/common/src/cxd56_audio.c
@@ -453,6 +453,7 @@ void board_audio_finalize(void)
   board_audio_i2s_disable();
 }
 
+#ifdef CONFIG_AUDIO_CXD56
 /****************************************************************************
  * Name: board_audio_initialize_driver
  *
@@ -530,3 +531,4 @@ int board_audio_initialize_driver(int minor)
 
   return ret;
 }
+#endif /* CONFIG_AUDIO_CXD56 */