diff --git a/fabrictestbed_extensions/fablib/fablib.py b/fabrictestbed_extensions/fablib/fablib.py
index 89575224..08325342 100644
--- a/fabrictestbed_extensions/fablib/fablib.py
+++ b/fabrictestbed_extensions/fablib/fablib.py
@@ -962,7 +962,7 @@ def __build_slice_manager(self) -> SliceManager:
                 token_location=self.get_token_location(),
                 initialize=True,
                 scope="all",
-                auto_refresh=self.auto_token_refresh
+                auto_refresh=self.auto_token_refresh,
             )
             self.slice_manager.initialize()
             logging.debug("Slice manager initialized!")