diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index c7cef2b..831a319 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -23,7 +23,7 @@ build:
   tags:
     - nix
   script:
-    - nom build
+    - nix run "nixpkgs#nom" -- build
     - cp result/sword.tar.xz ./sword-$TAG.tar.xz
     - echo "BUILD_ID=$CI_JOB_ID" > build.env
   artifacts: