diff --git a/crypto/fscrypt/FsCrypt.h b/crypto/fscrypt/FsCrypt.h
index 11a338f..c63e11f 100755
--- a/crypto/fscrypt/FsCrypt.h
+++ b/crypto/fscrypt/FsCrypt.h
@@ -42,5 +42,6 @@
 bool fscrypt_destroy_volume_keys(const std::string& volume_uuid);
 bool is_wrapped_key_supported();
 bool is_wrapped_key_supported_external();
+bool is_metadata_wrapped_key_supported();
 bool lookup_key_ref(const std::map<userid_t, std::string>& key_map, userid_t user_id,
                            std::string* raw_ref);
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