Index: /CKEditor/trunk/CHANGES.html
===================================================================
--- /CKEditor/trunk/CHANGES.html	(revision 5868)
+++ /CKEditor/trunk/CHANGES.html	(revision 5869)
@@ -69,5 +69,6 @@
 		<li><a href="http://dev.ckeditor.com/ticket/6197">#6197</a> : The CKEDITOR.loader base path auto-detection was not working with the _source folder.</li>
 		<li><a href="http://dev.ckeditor.com/ticket/6240">#6240</a> : Font Names & Font Sizes should be shown Left Align even for RTL Languages.</li>
-		<li><a href="http://dev.ckeditor.com/ticket/5975">#5975</a> : page-break should have proper Alt Text instead of Unknown object. so that JAWS reads it properly.</li>
+		<li><a href="http://dev.ckeditor.com/ticket/5975">#5975</a> : Page-break should have proper Alt Text instead of Unknown object. so that JAWS reads it properly.</li>
+		<li><a href="http://dev.ckeditor.com/ticket/6255">#6255</a> : Inserting a page break as the first node triggered an error.</li>
 		<li>Updated the following language files:<ul>
 			<li><a href="http://dev.ckeditor.com/ticket/6246">#6246</a> : Chinese Simplified;</li>
Index: /CKEditor/trunk/_source/plugins/pagebreak/plugin.js
===================================================================
--- /CKEditor/trunk/_source/plugins/pagebreak/plugin.js	(revision 5868)
+++ /CKEditor/trunk/_source/plugins/pagebreak/plugin.js	(revision 5869)
@@ -113,5 +113,5 @@
 			var previous = breakObject.getPrevious();
 
-			if ( CKEDITOR.dtd[ previous.getName() ].div )
+			if ( previous && CKEDITOR.dtd[ previous.getName() ].div )
 				breakObject.move( previous );
 		}