diff --git a/api/js/etemplate/et2_widget_selectbox.js b/api/js/etemplate/et2_widget_selectbox.js
index d1af1a278d..a67b8873da 100644
--- a/api/js/etemplate/et2_widget_selectbox.js
+++ b/api/js/etemplate/et2_widget_selectbox.js
@@ -807,7 +807,7 @@ var et2_selectbox = (function(){ "use strict"; return et2_inputWidget.extend(
 					if(_options[key]["label"]) _options[key]["label"] = this.egw().lang(_options[key]["label"]);
 					if(_options[key]["title"]) _options[key]["title"] = this.egw().lang(_options[key]["title"]);
 				}
-				else if(_options.length>0 || typeof _options === 'object')
+				else if(Array.isArray(_options) && _options.length>0 || typeof _options === 'object')
 				{
 					_options[key] = this.egw().lang(_options[key]);
 				}