Index: ezsiteinstaller.php
===================================================================
--- ezsiteinstaller.php	(revision 20341)
+++ ezsiteinstaller.php	(working copy)
@@ -1556,6 +1556,7 @@
         $srcSiteaccess = $params['src']['siteaccess'];
         $dstSiteaccess = $params['dst']['siteaccess'];
         $dstLocale     = isset( $params['dst']['locale'] ) ? $params['dst']['locale'] : false;
+        $siteLanguageList = isset( $params['dst']['primary_language'] ) ? array( $dstLocale, $params['dst']['primary_language'] ) : array( $dstLocale );
 
         // Create the siteaccess directory
         $srcSiteaccessDir = "settings/siteaccess/" . $srcSiteaccess;
@@ -1571,7 +1572,7 @@
             $siteINI->setVariable( "RegionalSettings", "Locale", $dstLocale );
             $siteINI->setVariable( "RegionalSettings", "TextTranslation", $dstLocale != 'eng-GB' ? 'enabled' : 'disabled' );
             $siteINI->setVariable( "RegionalSettings", "ContentObjectLocale", $dstLocale );
-            $siteINI->setVariable( "RegionalSettings", "SiteLanguageList", array( $dstLocale ) );
+            $siteINI->setVariable( "RegionalSettings", "SiteLanguageList", $siteLanguageList );
         }
 
         $siteINI->save(  false, false, false, false, true, true );