diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index baf4e765608c6b51d2066062b5e7505fffa0399f..9081600c3b82114b802ba4f4aada904489f5d805 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -12,9 +12,9 @@ variables:
 copy-files-to-swift:
   stage: upload
   script:
-    - curl -H \'X-Auth-Token: ${OS_TOKEN}\' -X DELETE ${OBJSTORE}/ ebrains-spack-builds.tar.gz
+    - curl -H \'X-Auth-Token: $OS_TOKEN\' -X DELETE $OBJSTORE/ ebrains-spack-builds.tar.gz
     - tar czf ebrains-spack-builds.tar.gz packages/ repo.yml spack.yaml
-    - curl -H \'X-Auth-Token: ${OS_TOKEN}\' -i ${OBJSTORE}/ -X PUT -T ebrains-spack-builds.tar.gz
+    - curl -H \'X-Auth-Token: $OS_TOKEN\' -i $OBJSTORE/ -X PUT -T ebrains-spack-builds.tar.gz
   tags:
     - shell-runner