diff --git a/lib/modules/rclone.nix b/lib/modules/rclone.nix
index 1fe9a1e..239c949 100644
--- a/lib/modules/rclone.nix
+++ b/lib/modules/rclone.nix
@@ -14,10 +14,12 @@ let
 
   mkSystemdDependencyOption =
     { default, ... }: lib.mkOption {
-      type = lib.types.attrsOf lib.types.str;
+      type = lib.types.attrsOf (lib.types.listOf lib.types.str);
       description = "The systemd services this sync depends on.";
       example = {
-        secrets = "sops-nix.service";
+        secrets = [
+          "sops-nix.service"
+        ];
       };
       inherit default;
     };