diff --git a/examples/lib/defaultHtmlStepUi.js b/examples/lib/defaultHtmlStepUi.js
index 796ea67f..9415a8ac 100644
--- a/examples/lib/defaultHtmlStepUi.js
+++ b/examples/lib/defaultHtmlStepUi.js
@@ -296,6 +296,8 @@ function DefaultHtmlStepUi(_sequencer, options) {
     $stepAll('.load-spin').hide();
     $step('.load').hide();
 
+    $stepAll('.download-btn').off('click');
+    
     step.imgElement.src = (step.name == 'load-image') ? step.output.src : step.output;
     var imgthumbnail = $step('.img-thumbnail').getDomElem();
     for (let index = 0; index < step.linkElements.length; index++) {