diff --git a/PROMS/VEPROMS.CSLA.Library/Config/DocVersionConfig.cs b/PROMS/VEPROMS.CSLA.Library/Config/DocVersionConfig.cs
index 11629d68..3fb5da71 100644
--- a/PROMS/VEPROMS.CSLA.Library/Config/DocVersionConfig.cs
+++ b/PROMS/VEPROMS.CSLA.Library/Config/DocVersionConfig.cs
@@ -125,8 +125,9 @@ namespace VEPROMS.CSLA.Library
 		}
 		public void RemoveEnhancedLink(int dvid)
 		{
-			// from this config, remove the link to the input dvid:
+			// from this config, remove the link to the input dvid (DocVersionId:
 			XmlNode xnx = _Xp.XmlContents.SelectSingleNode(string.Format("//Enhanced[@VersionID='{0}']", dvid));
+			if (xnx == null) return;		// B2020-069: check for null reference before accessing xnx.  
 			xnx.ParentNode.RemoveChild(xnx);
 		}
 		private DVEnhancedDocuments _MyEnhancedDocuments = null;