diff --git a/rules.lua b/rules.lua
index 4d888d2..cf1a446 100644
--- a/rules.lua
+++ b/rules.lua
@@ -69,7 +69,7 @@ awful.rules.rules = {
 		callback = awful.client.setslave },
 	{ rule = { class = "Steam", name = "Steam" },
 		properties = { tag = "F1" }},
-	{ rule_any = { class = {"Rocket.Chat"}, instance = {"rocket.chat"}},
+	{ rule_any = { class = {"Rocket.Chat", "rocketchat"}, instance = {"rocket.chat"}},
 		properties = { screen = screen_chat, tag = "5" }},
 	{ rule_any = { class = {"Element"}, instance = {"element"}},
 		properties = { screen = screen_chat, tag = "1" }},