diff --git a/audio/aidl/Android.bp b/audio/aidl/Android.bp
index 42a4ac1..340cdb5 100644
--- a/audio/aidl/Android.bp
+++ b/audio/aidl/Android.bp
@@ -119,6 +119,7 @@
         "android/hardware/audio/core/IStreamCommon.aidl",
         "android/hardware/audio/core/IStreamIn.aidl",
         "android/hardware/audio/core/IStreamOut.aidl",
+        "android/hardware/audio/core/IStreamOutEventCallback.aidl",
         "android/hardware/audio/core/ITelephony.aidl",
         "android/hardware/audio/core/MicrophoneDynamicInfo.aidl",
         "android/hardware/audio/core/MicrophoneInfo.aidl",