diff --git a/lib/jquery.stepy.js b/lib/jquery.stepy.js
index 73dd9be..332c6a3 100755
--- a/lib/jquery.stepy.js
+++ b/lib/jquery.stepy.js
@@ -179,7 +179,7 @@
       if (this.stepyOptions.description) {
         var description = methods._description.call(this, step);
 
-        if (description.length) {
+        if (description !== undefined && description.length) {
           head.append(description);
         }
       }