diff --git a/kitty/config.py b/kitty/config.py
index 703a0aaf2..1bcaf5378 100644
--- a/kitty/config.py
+++ b/kitty/config.py
@@ -51,7 +51,7 @@ def to_bool(x):
 def parse_mods(parts):
 
     def map_mod(m):
-        return {'CTRL': 'CONTROL', 'CMD': 'CONTROL'}.get(m, m)
+        return {'CTRL': 'CONTROL', 'CMD': 'SUPER', 'OPTION': 'ALT'}.get(m, m)
 
     mods = 0
     for m in parts: