diff --git a/addons/mail/static/src/components/attachment/attachment.js b/addons/mail/static/src/components/attachment/attachment.js
index 6dc894027d9..f62113c4c41 100644
--- a/addons/mail/static/src/components/attachment/attachment.js
+++ b/addons/mail/static/src/components/attachment/attachment.js
@@ -131,6 +131,9 @@ class Attachment extends Component {
      */
     _onClickUnlink(ev) {
         ev.stopPropagation();
+        if (!this.attachment) {
+            return;
+        }
         if (this.attachment.isLinkedToComposer) {
             this.attachment.remove();
             this.trigger('o-attachment-removed', { attachmentLocalId: this.props.attachmentLocalId });