diff --git a/nixos/configuration.nix b/nixos/configuration.nix
index 6731330..f21dcb4 100644
--- a/nixos/configuration.nix
+++ b/nixos/configuration.nix
@@ -33,6 +33,7 @@
       "minio-credentials" = {
         sopsFile = ./secrets/minio.yaml;
         key = "minioCredentials";
+        format = "yaml"
       };
     };
   };