diff --git a/WizardWidget.php b/WizardWidget.php
index 5fc5c19..a241789 100644
--- a/WizardWidget.php
+++ b/WizardWidget.php
@@ -115,6 +115,7 @@ public function run() {
 		// Add a completed step if defined
 		if ($this->complete_content) {
 			// Check if completed tab is set as start_step
+			$class = 'disabled';
 			if ($this->start_step == 'completed') {
 				$class = 'active';
 			}