diff --git a/js/jquery.knob.js b/js/jquery.knob.js
index 5294ffa..8a7e51c 100644
--- a/js/jquery.knob.js
+++ b/js/jquery.knob.js
@@ -189,7 +189,7 @@
 
             // wraps all elements in a div
             // add to DOM before Canvas init is triggered
-            this.$div = $('<div style="'
+            this.$div = $('<div class"knob" style="'
                 + (this.o.inline ? 'display:inline;' : '')
                 + 'width:' + this.o.width + 'px;height:' + this.o.height + 'px;'
                 + '"></div>');