diff --git a/src/controls/QskResizable.h b/src/controls/QskResizable.h
index af4b3b71..893ac45e 100644
--- a/src/controls/QskResizable.h
+++ b/src/controls/QskResizable.h
@@ -13,13 +13,6 @@
 class QSK_EXPORT QskResizable
 {
 public:
-    enum SizeConstraint
-    {
-        NoConstraint,
-        HeightForWidth,
-        WidthForHeight
-    };
-
     QskResizable();
     virtual ~QskResizable();