diff --git a/components/infobox/wikis/brawlstars/infobox_league_custom.lua b/components/infobox/wikis/brawlstars/infobox_league_custom.lua
index a091d053e76..ed21aac4636 100644
--- a/components/infobox/wikis/brawlstars/infobox_league_custom.lua
+++ b/components/infobox/wikis/brawlstars/infobox_league_custom.lua
@@ -77,7 +77,7 @@ end
 
 ---@param args table
 function CustomLeague:customParseArguments(args)
-	self.data.publishertier = args['supercell-sponsored']
+	self.data.publishertier = Logic.readBool(args['supercell-sponsored'])
 end
 
 ---@param args table