diff --git a/Libraries/GUI.lua b/Libraries/GUI.lua
index 108a4672..fe6ce3fa 100755
--- a/Libraries/GUI.lua
+++ b/Libraries/GUI.lua
@@ -886,8 +886,12 @@ end
 --------------------------------------------------------------------------------
 
 function GUI.actionButtons(x, y, fatSymbol)
-	local symbol = fatSymbol and "⬤" or "●"
-	
+	local symbol = fatSymbol or "●"
+
+	if _G._OCVERSION <= 175 then
+		local symbol = fatSymbol and "⬤" or "●"
+	end
+
 	local container = GUI.container(x, y, 5, 1)
 	container.close = container:addChild(GUI.button(1, 1, 1, 1, nil, 0xFF4940, nil, 0x992400, symbol))
 	container.minimize = container:addChild(GUI.button(3, 1, 1, 1, nil, 0xFFB640, nil, 0x996D00, symbol))
diff --git a/Libraries/System.lua b/Libraries/System.lua
index 254fc4f7..ed849c50 100755
--- a/Libraries/System.lua
+++ b/Libraries/System.lua
@@ -3174,6 +3174,7 @@ _G.print = function(...)
 	system.consoleWindow:focus()
 end
 
+_G._OCVERSION = tonumber(tostring(filesystem.read("/lib/core/boot.lua"):match("OpenOS %d+.%d+.%d+"):match("%d+.%d+.%d+"):gsub("%.", "")))
 --------------------------------------------------------------------------------
 
 return system