diff --git a/PROMS/Volian.Controls.Library/DisplaySearch.cs b/PROMS/Volian.Controls.Library/DisplaySearch.cs
index 3b6ac9f0..5d0d1828 100644
--- a/PROMS/Volian.Controls.Library/DisplaySearch.cs
+++ b/PROMS/Volian.Controls.Library/DisplaySearch.cs
@@ -936,7 +936,7 @@ namespace Volian.Controls.Library
 							if (cmboTreeROs.SelectedNode.Tag is ROFSTLookup.rodbi)
 							{
 								ROFSTLookup.rodbi db = (ROFSTLookup.rodbi)cmboTreeROs.SelectedNode.Tag;
-								return _MyRODbID.ToString() + ":" + string.Format("{0}", db.dbiID.ToString("D4"));
+								return _MyRODbID.ToString() + ":" + string.Format("{0}", db.dbiID.ToString("X4"));
 							}
 							else if (cmboTreeROs.SelectedNode.Tag is ROFSTLookup.rochild)
 							{