diff --git a/Perspex.Base/PerspexObject.cs b/Perspex.Base/PerspexObject.cs
index 79134d9890..102a7e030d 100644
--- a/Perspex.Base/PerspexObject.cs
+++ b/Perspex.Base/PerspexObject.cs
@@ -295,7 +295,7 @@ namespace Perspex
                 {
                     this.PropertyChanged -= handler;
                 };
-            });
+            }).StartWith(this.GetValue(property));
         }
 
         /// <summary>
diff --git a/Perspex.Controls/Primitives/ScrollBar.cs b/Perspex.Controls/Primitives/ScrollBar.cs
index f48576eed2..f8f4395cda 100644
--- a/Perspex.Controls/Primitives/ScrollBar.cs
+++ b/Perspex.Controls/Primitives/ScrollBar.cs
@@ -28,8 +28,6 @@ namespace Perspex.Controls.Primitives
 
         public ScrollBar()
         {
-            this.Classes.Add(":vertical");
-
             this.GetObservable(OrientationProperty).Subscribe(o =>
             {
                 if (o == Orientation.Horizontal)