diff --git a/.gitlab-ci-build.yml.in b/.gitlab-ci-build.yml.in
index 32c6f12..2849ac3 100644
--- a/.gitlab-ci-build.yml.in
+++ b/.gitlab-ci-build.yml.in
@@ -32,7 +32,7 @@ stages:
     PACKER_CACHE_DIR: ./cache/
     PACKER_LOG: 1
   script:
-    - nix run ".#${buildcmd}" || exit 1
+    - nix run ".#\"${buildcmd}\"" || exit 1
 
 qemu.amd64:
   extends: .build