diff --git a/wpf/Kanban-Board/Getting-started.md b/wpf/Kanban-Board/Getting-started.md
index b3d0bda03..442266493 100644
--- a/wpf/Kanban-Board/Getting-started.md
+++ b/wpf/Kanban-Board/Getting-started.md
@@ -109,7 +109,7 @@ The following sample code demonstrates this process in action:
 </Grid>
 
 {% endhighlight %}
-{% highlight C# hl_lines="1 2 3 4 5 7 8 9 10 11 13 14 15 16 17 19 20 21 22 23 24 25" %}
+{% highlight C# hl_lines="1 2 3 4 5 7 8 9 10 11 13 14 15 16 17 19 20 21 22 23 25" %}
 
 SfKanban kanban = new SfKanban()
 {