diff --git a/src/dlangui/platforms/common/platform.d b/src/dlangui/platforms/common/platform.d
index 6162cd13..abb092dc 100644
--- a/src/dlangui/platforms/common/platform.d
+++ b/src/dlangui/platforms/common/platform.d
@@ -56,6 +56,8 @@ enum WindowFlag : uint {
     MeasureSize = 8,
     /// window without decorations
     Borderless = 16,
+    /// expand window size if main widget minimal size is greater than size defined in window constructor
+    ExpandSize = 32,
 }
 
 /// Window states
@@ -466,7 +468,7 @@ class Window : CustomEventTarget {
     void adjustWindowOrContentSize(int minContentWidth, int minContentHeight) {
         _minContentWidth = minContentWidth;
         _minContentHeight = minContentHeight;
-        if (_windowOrContentResizeMode == WindowOrContentResizeMode.resizeWindow)
+        if (_windowOrContentResizeMode == WindowOrContentResizeMode.resizeWindow || flags & WindowFlag.ExpandSize)
             resizeWindow(Point(max(_windowRect.right, minContentWidth), max(_windowRect.bottom, minContentHeight)));
         updateWindowOrContentSize();
     }