diff --git a/phpgwapi/inc/class.egw_ckeditor_config.inc.php b/phpgwapi/inc/class.egw_ckeditor_config.inc.php
index 71719ffbee..a1257bc8e2 100644
--- a/phpgwapi/inc/class.egw_ckeditor_config.inc.php
+++ b/phpgwapi/inc/class.egw_ckeditor_config.inc.php
@@ -212,6 +212,8 @@ class egw_ckeditor_config
 		$config['entities_latin'] = false;
 		$config['editingBlock'] = true;
 		$config['disableNativeSpellChecker'] = true;
+		// we set allowedContent to true as the 4.1 contentFiltering system allows only activated features as content
+		$config['allowedContent'] = true;
 
 		$config['removePlugins'] = 'elementspath';