diff --git a/libs/ui/source/positioner.cpp b/libs/ui/source/positioner.cpp
index 61e50ba1..0a8260d7 100644
--- a/libs/ui/source/positioner.cpp
+++ b/libs/ui/source/positioner.cpp
@@ -56,9 +56,14 @@ namespace psemek::ui
 
 	void positioner::set_position(geom::point<float, 2> const & p, x_align x, y_align y)
 	{
-		position_ = p;
-		x_ = x;
-		y_ = y;
+		if (p != position_ || x_ != x || y_ != y)
+		{
+			position_ = p;
+			x_ = x;
+			y_ = y;
+
+			post_reshape();
+		}
 	}
 
 }