diff --git a/mpsd-software-environment.py b/mpsd-software-environment.py
index eeab74908c5c7be22d70b0a55cbc06daf7e3c90d..3845753040336a9572210fbf9235f3cc8d35a152 100755
--- a/mpsd-software-environment.py
+++ b/mpsd-software-environment.py
@@ -144,12 +144,11 @@ def set_up_logging(loglevel="warning", filename=None):
     )
 
 
-def get_available_toolchains(release :str) -> List[str]
+def get_available_toolchains(release: str) -> List[str]:
     """Given a release, return the available toolchains.
 
     Returns
     -------
-
     toolchains : List[str]
 
     Example
@@ -687,6 +686,7 @@ def main():
     )
     subparsers.required = True
     list_of_cmds = [
+        ("available", "Show toolchains available"),
         ("prepare", "Prepare the environment for installation on the disk"),
         ("install", "Install a software environment"),
         ("reinstall", "Reinstall a software environment"),