diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index e3b842d3abff00fa613896e0073a24221569704c..ec96cf4e49a2c92bd6e723c97f1924ca2c92db74 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -1,4 +1,6 @@
 build-document:
+  tags:
+      - docker
   image: nixos/nix
   stage: build
   script: