1 files changed, 1 insertions, 0 deletions
diff --git a/addons/mail/static/src/js/thread.js b/addons/mail/static/src/js/thread.js
index d4bd448d2f8..f34823ff9fc 100644
--- a/addons/mail/static/src/js/thread.js
+++ b/addons/mail/static/src/js/thread.js
@@ -380,6 +380,7 @@ var Thread = Widget.extend({
      * @param {MouseEvent} event
      */
     _onAttachmentView: function (event) {
+        event.stopPropagation();
         var activeAttachmentID = $(event.currentTarget).data('id');
         if (activeAttachmentID) {
             var attachmentViewer = new DocumentViewer(this, this.attachments, activeAttachmentID);