diff --git a/htdocs/core/class/doleditor.class.php b/htdocs/core/class/doleditor.class.php
index f5b9062cee7..d02f26e57a4 100644
--- a/htdocs/core/class/doleditor.class.php
+++ b/htdocs/core/class/doleditor.class.php
@@ -172,6 +172,7 @@ class DolEditor
             	//$skin='office2003';
             	//$skin='v2';
             	$skin='kama';
+                if (constant('JS_CKEDITOR')) $skin='moono';		// To use external ckeditor 4 js lib
 
             	$htmlencode_force=preg_match('/_encoded$/',$this->toolbarname)?'true':'false';
 
diff --git a/htdocs/main.inc.php b/htdocs/main.inc.php
index 255b4fd4afd..54fb4f781b7 100644
--- a/htdocs/main.inc.php
+++ b/htdocs/main.inc.php
@@ -1202,14 +1202,19 @@ function top_htmlhead($head, $title='', $disablejs=0, $disablehead=0, $arrayofjs
             {
                 print '<!-- Includes JS for CKEditor -->'."\n";
                 $pathckeditor=DOL_URL_ROOT.'/includes/ckeditor/';
-                if (constant('JS_CKEDITOR')) $pathckeditor=JS_CKEDITOR;    // To use external ckeditor js lib
+                $jsckeditor='ckeditor_basic.js';
+                if (constant('JS_CKEDITOR'))	// To use external ckeditor 4 js lib
+                {
+                	$pathckeditor=constant('JS_CKEDITOR');
+                	$jsckeditor='ckeditor.js';
+                }
                 print '<script type="text/javascript">';
                 print 'var CKEDITOR_BASEPATH = \''.$pathckeditor.'\';'."\n";
                 print 'var ckeditorConfig = \''.dol_buildpath($themesubdir.'/theme/'.$conf->theme.'/ckeditor/config.js',1).'\';'."\n";		// $themesubdir='' in standard usage
                 print 'var ckeditorFilebrowserBrowseUrl = \''.DOL_URL_ROOT.'/core/filemanagerdol/browser/default/browser.php?Connector='.DOL_URL_ROOT.'/core/filemanagerdol/connectors/php/connector.php\';'."\n";
                 print 'var ckeditorFilebrowserImageBrowseUrl = \''.DOL_URL_ROOT.'/core/filemanagerdol/browser/default/browser.php?Type=Image&Connector='.DOL_URL_ROOT.'/core/filemanagerdol/connectors/php/connector.php\';'."\n";
                 print '</script>'."\n";
-                print '<script type="text/javascript" src="'.$pathckeditor.'ckeditor_basic.js'.($ext?'?'.$ext:'').'"></script>'."\n";
+                print '<script type="text/javascript" src="'.$pathckeditor.$jsckeditor.($ext?'?'.$ext:'').'"></script>'."\n";
             }
 
             // Global js function