diff --git a/include/nuttx/audio/es8311.h b/include/nuttx/audio/es8311.h
index 0fce6d0439f..59ffc4d6527 100644
--- a/include/nuttx/audio/es8311.h
+++ b/include/nuttx/audio/es8311.h
@@ -109,8 +109,6 @@
  * Public Types
  ****************************************************************************/
 
-struct es8311_lower_s;
-
 struct es8311_lower_s
 {
   /* I2C characterization */