diff --git a/addon/addon.lua b/addon/addon.lua
index 7528836..0ee1c49 100644
--- a/addon/addon.lua
+++ b/addon/addon.lua
@@ -88,7 +88,7 @@ setmetatable(Prat, am)
 
 
 Prat.Prat3 = true
-Prat.IsClassic = (_G.WOW_PROJECT_ID == _G.WOW_PROJECT_CLASSIC)
+Prat.IsClassic = (_G.WOW_PROJECT_ID ~= _G.WOW_PROJECT_MAINLINE)
 Prat.IsRetail =  (_G.WOW_PROJECT_ID == _G.WOW_PROJECT_MAINLINE)
 
 
@@ -815,4 +815,4 @@ RegisterChatCommand("pratdebugmsg",
 
     local cc = addon:GetModule("CopyChat", true)
     if cc then cc:ScrapeFullChatFrame(printFrame or _G.DEFAULT_CHAT_FRAME, true) end
-  end)
\ No newline at end of file
+  end)