diff --git a/module.nix b/module.nix
index 142727c..fa958d5 100644
--- a/module.nix
+++ b/module.nix
@@ -5,10 +5,14 @@ let
   yamlFormat = pkgs.formats.yaml { };
   credentialsDirectory = "/run/credentials/caddy-opnsense-blocker.service";
 
-  credentialSettings = lib.optionalAttrs (cfg.credentials.opnsenseApiKeyFile != null) {
-    opnsense.api_key_file = "${credentialsDirectory}/opnsense_api_key";
-  } // lib.optionalAttrs (cfg.credentials.opnsenseApiSecretFile != null) {
-    opnsense.api_secret_file = "${credentialsDirectory}/opnsense_api_secret";
+  credentialSettings = {
+    opnsense =
+      lib.optionalAttrs (cfg.credentials.opnsenseApiKeyFile != null) {
+        api_key_file = "${credentialsDirectory}/opnsense_api_key";
+      }
+      // lib.optionalAttrs (cfg.credentials.opnsenseApiSecretFile != null) {
+        api_secret_file = "${credentialsDirectory}/opnsense_api_secret";
+      };
   };
 
   defaultSettings = {