diff --git a/benchcab/config.py b/benchcab/config.py
index 89ef102..7c693db 100644
--- a/benchcab/config.py
+++ b/benchcab/config.py
@@ -85,7 +85,6 @@ def read_optional_key(config: dict):
     """
     if "project" not in config:
         if "PROJECT" not in os.environ:
-            # TODO: test case/functionality for validation of an existing group
             msg = """Couldn't resolve project: check 'project' in config.yaml
                 and/or $PROJECT set in ~/.config/gadi-login.conf
                 """