diff --git a/flake.nix b/flake.nix
index b1d50d6..b958bc1 100644
--- a/flake.nix
+++ b/flake.nix
@@ -19,8 +19,8 @@
           #!/usr/bin/env bash
           set -euo pipefail
           
-          if [ -z "$1" ]; then
-            echo "Usage: $0 <path-to-yaml-file>"
+          if [[ $# -eq 0 ]]; then
+            echo "Usage: $0 <path/to/docker-compose.yaml>"
             exit 1
           fi