diff --git a/fs_mgr/libsnapshot/android/snapshot/snapshot.proto b/fs_mgr/libsnapshot/android/snapshot/snapshot.proto
index c6c3aec..d04c9c1 100644
--- a/fs_mgr/libsnapshot/android/snapshot/snapshot.proto
+++ b/fs_mgr/libsnapshot/android/snapshot/snapshot.proto
@@ -123,6 +123,15 @@
 
     // Default value is 32, can be set lower for low mem devices
     uint32 read_ahead_size = 17;
+
+    // Enable direct reads on source device
+    bool o_direct = 18;
+
+    // Blocks size to be verified at once
+    uint64 verify_block_size = 19;
+
+    // Default value is 2, configures threads to do verification phase
+    uint32 num_verify_threads = 20;
 }
 
 // Next: 8