diff --git a/Android.bp b/Android.bp
index 323bc3c..5d93bfa 100644
--- a/Android.bp
+++ b/Android.bp
@@ -265,6 +265,7 @@
     srcs: [
         "binder/android/os/IVold.aidl",
         "binder/android/os/IVoldListener.aidl",
+        "binder/android/os/IVoldMountCallback.aidl",
         "binder/android/os/IVoldTaskListener.aidl",
     ],
     path: "binder",