1 files changed, 2 insertions, 2 deletions

diff --git a/nix/module.nix b/nix/module.nix
index 05c092d..401b956 100644
--- a/nix/module.nix
+++ b/nix/module.nix
@@ -26,8 +26,8 @@ let
 
     serviceConfig = {
       ExecStart = let
-        args = [ path (toString maxSize) ] + optional (monitorTimeout != null) monitorTimeout;
-      in "${pkgs.rolling-directory}/bin/rolling-directory ${escapeShellArgs args}";
+        sArgs = [ path (toString maxSize) ] + (optional (monitorTimeout != null) monitorTimeout);
+      in "${pkgs.rolling-directory}/bin/rolling-directory ${escapeShellArgs sArgs}";
     };
   };
 in {