diff --git a/CHANGELOG.txt b/CHANGELOG.txt
index e6626bd98df7d5eb84570f4adfa2faa6373eb83d..81da5464c57f8d4b93619a4625b94a6f3b3e2384 100644
--- a/CHANGELOG.txt
+++ b/CHANGELOG.txt
@@ -15,6 +15,7 @@ Wysiwyg 7.x-3.x, xxxx-xx-xx
 
 Wysiwyg 6.x-3.x, xxxx-xx-xx
 ---------------------------
+#660080 by TwoD: Fixed Notice: Undefined offset.
 #462146 by TwoD: Cleaned up CKEditor implementation.
 #380586 by SimonEast: Updated YUI editor: Version detection not working.
 #610132 by TwoD: Updated CKEditor 3.0.1, stylesheets and version check.
diff --git a/wysiwyg.admin.inc b/wysiwyg.admin.inc
index e745e034ed6e4c651f2183f58ac7faa950640633..7466b83a34783f9681690051346e0d347b673dae 100644
--- a/wysiwyg.admin.inc
+++ b/wysiwyg.admin.inc
@@ -383,7 +383,7 @@ function wysiwyg_profile_overview($form, &$form_state) {
       $library = (isset($editor['library']) ? $editor['library'] : key($editor['libraries']));
       $targs = array(
         '@editor-path' => $editor['editor path'],
-        '@library-filepath' => $editor['library path'] . '/' . $editor['libraries'][$library]['files'][0],
+        '@library-filepath' => $editor['library path'] . '/' . (isset($editor['libraries'][$library]['files'][0]) ? $editor['libraries'][$library]['files'][0] : key($editor['libraries'][$library]['files'])),
       );
       $instructions = '<p>' . t('Extract the archive and copy its contents into a new folder in the following location:<br /><code>@editor-path</code>', $targs) . '</p>';
       $instructions .= '<p>' . t('So the actual library can be found at:<br /><code>@library-filepath</code>', $targs) . '</p>';