diff --git a/code/controllers/subsystem/afk.dm b/code/controllers/subsystem/afk.dm
index 6a02a9f037f..f14eb72515e 100644
--- a/code/controllers/subsystem/afk.dm
+++ b/code/controllers/subsystem/afk.dm
@@ -5,7 +5,7 @@ SUBSYSTEM_DEF(afk)
 	name = "AFK Watcher"
 	wait = 300
 	flags = SS_BACKGROUND
-	var/list/afk_players = list() // Associative list. client as key and AFK state as value
+	var/list/afk_players = list() // Associative list. ckey as key and AFK state as value
 
 
 /datum/controller/subsystem/afk/Initialize()