diff --git a/modules/client_skins/skins/default/styles/miniwindow.otui b/modules/client_skins/skins/default/styles/miniwindow.otui
index 8546eb0c..681e909a 100644
--- a/modules/client_skins/skins/default/styles/miniwindow.otui
+++ b/modules/client_skins/skins/default/styles/miniwindow.otui
@@ -15,6 +15,17 @@ MiniWindow < UIMiniWindow
   $on:
     image-border-bottom: 2
 
+  UIWidget
+    id: miniwindowTopBar
+    anchors.top: parent.top
+    anchors.right: parent.right
+    anchors.left: parent.left
+    margin-right: 3
+    margin-left: 3
+    margin-top: 3
+    size: 258 18
+    phantom: true
+
   UIButton
     id: closeButton
     anchors.top: parent.top
diff --git a/modules/corelib/ui/uiminiwindow.lua b/modules/corelib/ui/uiminiwindow.lua
index e0b4ddb4..496020eb 100644
--- a/modules/corelib/ui/uiminiwindow.lua
+++ b/modules/corelib/ui/uiminiwindow.lua
@@ -81,6 +81,15 @@ function UIMiniWindow:setup()
         self:minimize()
       end
     end
+    
+  self:getChildById('miniwindowTopBar').onDoubleClick =
+    function()
+      if self:isOn() then
+        self:maximize()
+      else
+        self:minimize()
+      end
+    end
 
   local oldParent = self:getParent()