diff --git a/repertory/librepertory/src/providers/s3/s3_provider.cpp b/repertory/librepertory/src/providers/s3/s3_provider.cpp
index 58d2019f..c0ce0263 100644
--- a/repertory/librepertory/src/providers/s3/s3_provider.cpp
+++ b/repertory/librepertory/src/providers/s3/s3_provider.cpp
@@ -1067,7 +1067,7 @@ auto s3_provider::search_keys_for_master_kdf(
     }
 
     master_kdf_cfg_.unique_id = 0U;
-    master_kdf_cfg_.seal();
+    master_kdf_cfg_.checksum = master_kdf_cfg_.generate_checksum();
 
     if (not utils::encryption::recreate_key_argon2id(
             encryption_token, master_kdf_cfg_, master_key_)) {