diff --git a/src/ol/control/rotatecontrol.js b/src/ol/control/rotatecontrol.js
index 38e1375bde..e71f3c31c8 100644
--- a/src/ol/control/rotatecontrol.js
+++ b/src/ol/control/rotatecontrol.js
@@ -26,9 +26,9 @@ ol.control.Rotate = function(opt_options) {
 
   var options = opt_options ? opt_options : {};
 
-  var className = options.className ? options.className : 'ol-rotate';
+  var className = options.className !== undefined ? options.className : 'ol-rotate';
 
-  var label = options.label ? options.label : '\u21E7';
+  var label = options.label !== undefined ? options.label : '\u21E7';
 
   /**
    * @type {Element}