diff --git a/src/dlangui/widgets/controls.d b/src/dlangui/widgets/controls.d
index 18d54d0b..b5db5363 100644
--- a/src/dlangui/widgets/controls.d
+++ b/src/dlangui/widgets/controls.d
@@ -95,7 +95,7 @@ class TextWidget : Widget {
 
     protected UIString _text;
     /// get widget text
-    override @property dstring text() { return _text; }
+    override @property dstring text() const { return _text; }
     /// set text to show
     override @property Widget text(dstring s) { 
         _text = s; 
diff --git a/src/dlangui/widgets/widget.d b/src/dlangui/widgets/widget.d
index 3ac0e600..8f2be7af 100644
--- a/src/dlangui/widgets/widget.d
+++ b/src/dlangui/widgets/widget.d
@@ -1739,7 +1739,7 @@ class WidgetGroup : Widget {
     protected WidgetList _children;
 
     /// returns number of children of this widget
-    @property override int childCount() { return _children.count; }
+    @property override int childCount() const { return _children.count; }
     /// returns child by index
     override Widget child(int index) { return _children.get(index); }
     /// adds child, returns added item