diff --git a/PROMS/Volian.Controls.Library/DisplayTransition.cs b/PROMS/Volian.Controls.Library/DisplayTransition.cs
index 13933954..5d694626 100644
--- a/PROMS/Volian.Controls.Library/DisplayTransition.cs
+++ b/PROMS/Volian.Controls.Library/DisplayTransition.cs
@@ -960,7 +960,8 @@ namespace Volian.Controls.Library
 				}
 				else
 					toItem = (ItemInfo)cbTranSects.SelectedItem;		// didn't select a step.
-				linktxt = string.Format("#Link:Transition:{0} <NewID> {1}", listBoxTranFmt.SelectedIndex, toItem.ItemID);
+				if (toItem != null) // this will be null if transition is to a an empty procedure set (sections but no steps)
+					linktxt = string.Format("#Link:Transition:{0} <NewID> {1}", listBoxTranFmt.SelectedIndex, toItem.ItemID);
 			}
 			// toItem may have been set in the 'Range' selection code above.
 			if (toItem == null && (etm & E_TransUI.SectMenuAny) == E_TransUI.SectMenuAny)