diff --git a/binder/android/os/IVold.aidl b/binder/android/os/IVold.aidl
index ef4f89a..eb012a0 100644
--- a/binder/android/os/IVold.aidl
+++ b/binder/android/os/IVold.aidl
@@ -88,7 +88,7 @@
     void initUser0();
     boolean isConvertibleToFbe();
     void mountFstab(@utf8InCpp String blkDevice, @utf8InCpp String mountPoint);
-    void encryptFstab(@utf8InCpp String blkDevice, @utf8InCpp String mountPoint);
+    void encryptFstab(@utf8InCpp String blkDevice, @utf8InCpp String mountPoint, boolean shouldFormat, @utf8InCpp String fsType);
 
     void createUserKey(int userId, int userSerial, boolean ephemeral);
     void destroyUserKey(int userId);