diff --git a/config.conf b/config.conf
index 39483ae..ca37f3f 100644
--- a/config.conf
+++ b/config.conf
@@ -161,6 +161,8 @@ tags=id:9,layout_name:tile
 # but the second key is case sensitive, 
 # if you use shift as one of the mod keys, 
 # remember to use uppercase keys
+# mod keys name: super,ctrl,alt,shift,none
+
 
 # reload config
 bind=SUPER,r,reload_config