diff --git a/kmk/modules/combos.py b/kmk/modules/combos.py
index f97e3fa..7d667d2 100644
--- a/kmk/modules/combos.py
+++ b/kmk/modules/combos.py
@@ -71,7 +71,7 @@ class Combos(Module):
         self._key_buffer = []
 
         make_key(
-            names=('LEADER','LDR'),
+            names=('LEADER', 'LDR'),
             on_press=handlers.passthrough,
             on_release=handlers.passthrough,
         )