diff --git a/machines/fanny/configuration.nix b/machines/fanny/configuration.nix
index f2cc70d8..c398678c 100644
--- a/machines/fanny/configuration.nix
+++ b/machines/fanny/configuration.nix
@@ -165,7 +165,7 @@ in
     defaults.email = "malobeo@systemli.org";
     defaults = {
       dnsProvider = "njalla";
-      credentialsFile = config.sops.secrets.njala_api_key.path;
+      environmentFile = config.sops.secrets.njala_api_key.path;
       dnsPropagationCheck = false;
     };
   };
diff --git a/machines/lucia/configuration.nix b/machines/lucia/configuration.nix
index 778f1861..6bc35246 100644
--- a/machines/lucia/configuration.nix
+++ b/machines/lucia/configuration.nix
@@ -199,7 +199,7 @@ in
     defaults.email = "malobeo@systemli.org";
     defaults = {
       dnsProvider = "njalla";
-      credentialsFile = config.sops.secrets.njala_api_key.path;
+      environmentFile = config.sops.secrets.njala_api_key.path;
       dnsPropagationCheck = false;
     };
   };