diff --git a/Android.mk b/Android.mk
index 35ee3fd..95f38c5 100644
--- a/Android.mk
+++ b/Android.mk
@@ -120,6 +120,7 @@
 	core/java/android/os/IMessenger.aidl \
 	core/java/android/os/storage/IMountService.aidl \
 	core/java/android/os/storage/IMountServiceListener.aidl \
+	core/java/android/os/storage/IMountShutdownObserver.aidl \
 	core/java/android/os/INetworkManagementService.aidl \
 	core/java/android/os/INetStatService.aidl \
 	core/java/android/os/IPermissionController.aidl \