diff --git a/mpsd-software-environment.py b/mpsd-software-environment.py
index f66c7363fd78b95bd1cf68e472652c7408587804..0741c279af468fa1af81ce4b4102ed023c380def 100755
--- a/mpsd-software-environment.py
+++ b/mpsd-software-environment.py
@@ -352,7 +352,9 @@ def get_available_toolchains(mpsd_release: str) -> List[str]:
     tmp_dir_path = Path(tmp_dir.name)
 
     # find toolchains by cloning repository and checking out right branch
-    clone_repo(tmp_dir_path, config_vars["spack_environments_repo"], branch=mpsd_release)
+    clone_repo(
+        tmp_dir_path, config_vars["spack_environments_repo"], branch=mpsd_release
+    )
     # look for directories defining the toolchains
     # import time
     # time.sleep(10)