diff --git a/binder/android/os/IVold.aidl b/binder/android/os/IVold.aidl
index 919369b..a8cce94 100644
--- a/binder/android/os/IVold.aidl
+++ b/binder/android/os/IVold.aidl
@@ -84,7 +84,7 @@
 
     void initUser0();
     void mountFstab(@utf8InCpp String blkDevice, @utf8InCpp String mountPoint, boolean isZoned, in @utf8InCpp String[] userDevices);
-    void encryptFstab(@utf8InCpp String blkDevice, @utf8InCpp String mountPoint, boolean shouldFormat, @utf8InCpp String fsType, boolean isZoned, in @utf8InCpp String[] userDevices);
+    void encryptFstab(@utf8InCpp String blkDevice, @utf8InCpp String mountPoint, boolean shouldFormat, @utf8InCpp String fsType, boolean isZoned, in @utf8InCpp String[] userDevices, long length);
 
     void setStorageBindingSeed(in byte[] seed);