diff --git a/EgwCoreLib.Razor/ChartTS.razor.cs b/EgwCoreLib.Razor/ChartTS.razor.cs
index 426c68c..0e3eced 100644
--- a/EgwCoreLib.Razor/ChartTS.razor.cs
+++ b/EgwCoreLib.Razor/ChartTS.razor.cs
@@ -73,7 +73,8 @@ namespace EgwCoreLib.Razor
                 type = "line",
                 options = new
                 {
-                    responsive = true,
+                    Responsive = true,
+                    MaintainAspectRatio = false,
                     scales = new
                     {
                         yAxes = new