diff --git a/core/model/ErrorPage.php b/core/model/ErrorPage.php
index 52cd970b3..fde9078ee 100755
--- a/core/model/ErrorPage.php
+++ b/core/model/ErrorPage.php
@@ -63,7 +63,6 @@ class ErrorPage extends Page {
 			$errorpage = new ErrorPage();
 			$errorpage->ErrorCode = 404;
 			$errorpage->Title = _t('ErrorPage.DEFAULTERRORPAGETITLE', 'Page not found');
-			$errorpage->URLSegment = 'page-not-found';
 			$errorpage->Content = _t('ErrorPage.DEFAULTERRORPAGECONTENT', '<p>Sorry, it seems you were trying to access a page that doesn\'t exist.</p><p>Please check the spelling of the URL you were trying to access and try again.</p>');
 			$errorpage->Status = 'New page';
 			$errorpage->write();
diff --git a/core/model/SiteTree.php b/core/model/SiteTree.php
index 08733041c..c1d7746b1 100755
--- a/core/model/SiteTree.php
+++ b/core/model/SiteTree.php
@@ -1201,7 +1201,6 @@ class SiteTree extends DataObject implements PermissionProvider,i18nEntityProvid
 				$aboutus = new Page();
 				$aboutus->Title = _t('SiteTree.DEFAULTABOUTTITLE', 'About Us');
 				$aboutus->Content = _t('SiteTree.DEFAULTABOUTCONTENT', '<p>You can fill this page out with your own content, or delete it and create your own pages.<br /></p>');
-				$aboutus->URLSegment = "about-us";
 				$aboutus->Status = "Published";
 				$aboutus->write();
 				$aboutus->publish("Stage", "Live");
@@ -1210,7 +1209,6 @@ class SiteTree extends DataObject implements PermissionProvider,i18nEntityProvid
 				$contactus = new Page();
 				$contactus->Title = _t('SiteTree.DEFAULTCONTACTTITLE', 'Contact Us');
 				$contactus->Content = _t('SiteTree.DEFAULTCONTACTCONTENT', '<p>You can fill this page out with your own content, or delete it and create your own pages.<br /></p>');
-				$contactus->URLSegment = "contact-us";
 				$contactus->Status = "Published";
 				$contactus->write();
 				$contactus->publish("Stage", "Live");