diff --git a/MapControl/Shared/MapTileLayer.cs b/MapControl/Shared/MapTileLayer.cs
index f118deac..c7939c6c 100644
--- a/MapControl/Shared/MapTileLayer.cs
+++ b/MapControl/Shared/MapTileLayer.cs
@@ -89,8 +89,6 @@ namespace MapControl
 
         protected override Size MeasureOverride(Size availableSize)
         {
-            availableSize = new Size(double.PositiveInfinity, double.PositiveInfinity);
-
             foreach (var tile in Tiles)
             {
                 tile.Image.Measure(availableSize);
diff --git a/MapControl/Shared/WmtsTileMatrixLayer.cs b/MapControl/Shared/WmtsTileMatrixLayer.cs
index 23ad6b80..a412032c 100644
--- a/MapControl/Shared/WmtsTileMatrixLayer.cs
+++ b/MapControl/Shared/WmtsTileMatrixLayer.cs
@@ -101,8 +101,6 @@ namespace MapControl
 
         protected override Size MeasureOverride(Size availableSize)
         {
-            availableSize = new Size(double.PositiveInfinity, double.PositiveInfinity);
-
             foreach (var tile in Tiles)
             {
                 tile.Image.Measure(availableSize);