diff --git a/.gitignore b/.gitignore
index c51599b..1e1b574 100644
--- a/.gitignore
+++ b/.gitignore
@@ -26,3 +26,4 @@ cache
 venv
 
 .gitlab-ci-build.yml
+build.env
diff --git a/.gitlab-ci-build.yml.in b/.gitlab-ci-build.yml.in
index f1dd5f0..2d86b08 100644
--- a/.gitlab-ci-build.yml.in
+++ b/.gitlab-ci-build.yml.in
@@ -63,7 +63,7 @@ hyperv-iso.amd64:
     COMMAND: >
       packer build ${only}
       -var-file="${distro}"
-      -var build=${CI_COMMIT_TAG}
+      -var build=${BUILD}
       -var cpus=2
       -var memory=4096
       ${EXCEPT}
@@ -90,5 +90,5 @@ hyperv-iso.amd64:
     tag_name: '$CI_COMMIT_TAG'
     description: >-
       Release $CI_COMMIT_TAG, found on [Vagrant Cloud](https://app.vagrantup.com/boxen/)
-      as version v${CI_COMMIT_TAG}
+      as version v${BUILD}
     
diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 5ce6a85..5eabab2 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -17,6 +17,8 @@ generate:
   artifacts:
     paths:
       - distros/**/*.pkrvars.hcl
+    reports:
+      dotenv: build.env
   script: nix run ".#generate"
 
 continue:
diff --git a/flake.nix b/flake.nix
index 619e3cd..ea8b3d2 100644
--- a/flake.nix
+++ b/flake.nix
@@ -154,6 +154,7 @@
 					name = "generate";
 					runtimeInputs = with pkgs; [
 						bash
+						coreutils
 						curl
 						jq
 						pup
@@ -163,6 +164,8 @@
 						for vars in distros/**/*.pkrvars.hcl.sh; do
 							bash "./''${vars}"
 						done
+						BUILD="$(date "+%Y.%m.%d.%H")"
+						echo "BUILD=$BUILD" >> build.env
 					'';
 				};
 				shellcheck = pkgs.writeShellApplication {