diff --git a/flake.nix b/flake.nix
index d55f7ec..2673360 100644
--- a/flake.nix
+++ b/flake.nix
@@ -129,16 +129,22 @@
                 ''
                 ''mkdir -p /var/tmp''
               ];
-              script = [
-                (lib.concatStringsSep " " (
-                  ["buildah manifest create localhost/nix-coder-image"]
-                  ++ builtins.map (sys: "docker-archive:dist/nix-coder-image_${sys}.tar.gz ") SYSTEMS
-                ))
-                ''
-                  buildah manifest push --all localhost/nix-coder-image \
-                    docker://''${CI_REGISTRY_IMAGE}/nix-coder-image:$CI_COMMIT_SHORT_SHA
-                ''
-              ];
+              script =
+                [
+                  ''buildah manifest create localhost/nix-coder-image''
+                ]
+                ++ (
+                  builtins.map (sys: ''
+                    buildah manifest add localhost/nix-coder-image docker-archive:dist/nix-coder-image_${sys}.tar.gz
+                  '')
+                  SYSTEMS
+                )
+                ++ [
+                  ''
+                    buildah manifest push --all localhost/nix-coder-image \
+                      docker://''${CI_REGISTRY_IMAGE}/nix-coder-image:$CI_COMMIT_SHORT_SHA
+                  ''
+                ];
             };
           };
         };