diff --git a/flake.nix b/flake.nix
index d432c7c..3c3f694 100644
--- a/flake.nix
+++ b/flake.nix
@@ -33,7 +33,7 @@
 
           # 3. Upload to container registry
           ${pkgs.skopeo}/bin/skopeo copy \
-              --insecure-policy
+              --insecure-policy \
               docker-archive:result \
               docker://gitlab.julian-mutter.de/julian/sheetless-server:latest
         '';