diff --git a/uk/ac/sanger/artemis/io/SimpleDocumentEntry.java b/uk/ac/sanger/artemis/io/SimpleDocumentEntry.java
index 985a7d9023982ab9424d3bafff2cd1e01808e0d2..4261727c063f027cd2296f38f627f689bca7273e 100644
--- a/uk/ac/sanger/artemis/io/SimpleDocumentEntry.java
+++ b/uk/ac/sanger/artemis/io/SimpleDocumentEntry.java
@@ -20,7 +20,7 @@
  * along with this program; if not, write to the Free Software
  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  *
- * $Header: //tmp/pathsoft/artemis/uk/ac/sanger/artemis/io/SimpleDocumentEntry.java,v 1.22 2008-04-01 10:14:42 tjc Exp $
+ * $Header: //tmp/pathsoft/artemis/uk/ac/sanger/artemis/io/SimpleDocumentEntry.java,v 1.23 2008-04-22 14:28:05 tjc Exp $
  */
 
 package uk.ac.sanger.artemis.io;
@@ -38,7 +38,7 @@ import javax.swing.JOptionPane;
  *  This class contains the methods common to all DocumentEntry objects.
  *
  *  @author Kim Rutherford <kmr@sanger.ac.uk>
- *  @version $Id: SimpleDocumentEntry.java,v 1.22 2008-04-01 10:14:42 tjc Exp $
+ *  @version $Id: SimpleDocumentEntry.java,v 1.23 2008-04-22 14:28:05 tjc Exp $
  **/
 
 abstract public class SimpleDocumentEntry
@@ -335,7 +335,7 @@ abstract public class SimpleDocumentEntry
     while(feature_enum.hasMoreFeatures()) 
     {
       final Feature new_feature = feature_enum.nextFeature();
-      
+
       try
       {
         if(force) 
@@ -357,7 +357,7 @@ abstract public class SimpleDocumentEntry
             for(int i=0; i<docFeatures.length; i++)
               add((SimpleDocumentFeature)docFeatures[i]);
           }
-          else
+          else if(docFeature != null)
             add((SimpleDocumentFeature)docFeature);
         }
       }