diff --git a/js/src/popover.js b/js/src/popover.js
index e17704d45d..4f8aeeb2c3 100644
--- a/js/src/popover.js
+++ b/js/src/popover.js
@@ -116,12 +116,12 @@ class Popover extends Tooltip {
     tip.classList.remove(CLASS_NAME_FADE, CLASS_NAME_SHOW)
   }
 
+  // Private
+
   _addAttachmentClass(attachment) {
     this.getTipElement().classList.add(`${CLASS_PREFIX}-${attachment}`)
   }
 
-  // Private
-
   _getContent() {
     return this.element.getAttribute('data-content') ||
       this.config.content