diff --git a/spack-environment/xl/spack.yaml b/spack-environment/xl/spack.yaml
index 5f9856429e687f4b1fd0b92228145a13ae9153b3..96b50cb89c3332d6ec6da76eef8fa79c176f7e40 100644
--- a/spack-environment/xl/spack.yaml
+++ b/spack-environment/xl/spack.yaml
@@ -90,6 +90,7 @@ spack:
   - py-pre-commit
   - py-pycairo
   - py-pyyaml
+  - py-rucio-clients
   - py-scipy
   - py-seaborn
   - py-toml