diff --git a/MetadataCrypt.h b/MetadataCrypt.h
index 7341a08..e482765 100644
--- a/MetadataCrypt.h
+++ b/MetadataCrypt.h
@@ -26,7 +26,8 @@
 namespace vold {
 
 bool fscrypt_mount_metadata_encrypted(const std::string& block_device,
-                                      const std::string& mount_point, bool needs_encrypt);
+                                      const std::string& mount_point, bool needs_encrypt,
+                                      bool should_format, const std::string& fs_type);
 
 bool defaultkey_volume_keygen(KeyGeneration* gen);