diff --git a/PROMS/Volian.Controls.Library/DisplayTabControl.cs b/PROMS/Volian.Controls.Library/DisplayTabControl.cs
index 78492a5e..90b2164f 100644
--- a/PROMS/Volian.Controls.Library/DisplayTabControl.cs
+++ b/PROMS/Volian.Controls.Library/DisplayTabControl.cs
@@ -132,8 +132,16 @@ namespace Volian.Controls.Library
 		/// <param name="args"></param>
 		internal void OnItemSelectedChanged(object sender, ItemSelectedChangedEventArgs args)
 		{
-			_MyItemInfo = args.MyItemInfo;
-			_MyStepItem = args.MyStepItem;
+			if (args != null)
+			{
+				_MyItemInfo = args.MyItemInfo;
+				_MyStepItem = args.MyStepItem;
+			}
+			else
+			{
+				_MyItemInfo = null;
+				_MyStepItem = null;
+			}
 			if (ItemSelectedChanged != null) ItemSelectedChanged(sender, args);
 		}
 		#endregion