diff --git a/index.js b/index.js
index 2ffb243..6d49ae2 100644
--- a/index.js
+++ b/index.js
@@ -268,7 +268,7 @@ const TabPrivate = {
             let button = container.appendChild(document.createElement("button"));
             button.classList.add(`${tabClass}-button-close`);
             button.innerHTML = this.tabGroup.options.closeButtonText;
-            button.addEventListener("click", this.close.bind(this), false);
+            button.addEventListener("click", this.close.bind(this, false), false);
         }
     },
 
@@ -313,4 +313,4 @@ const TabPrivate = {
     }
 };
 
-module.exports = TabGroup;
\ No newline at end of file
+module.exports = TabGroup;