diff --git a/src/bootstrap-wizard.js b/src/bootstrap-wizard.js
index 80dc273..06e6c95 100644
--- a/src/bootstrap-wizard.js
+++ b/src/bootstrap-wizard.js
@@ -526,7 +526,7 @@
 				event.data.setCard(index);
 			});
 			
-			if ( this.title.length != 0 ) {
+			if ( this.title && this.title.length != 0 ) {
 				this.setTitle(this.title);
 			}