diff --git a/addons/mail/static/src/components/attachment_delete_confirm_dialog/attachment_delete_confirm_dialog.js b/addons/mail/static/src/components/attachment_delete_confirm_dialog/attachment_delete_confirm_dialog.js
index 36f0146a2eb..9843cb9304f 100644
--- a/addons/mail/static/src/components/attachment_delete_confirm_dialog/attachment_delete_confirm_dialog.js
+++ b/addons/mail/static/src/components/attachment_delete_confirm_dialog/attachment_delete_confirm_dialog.js
@@ -70,9 +70,9 @@ class AttachmentDeleteConfirmDialog extends Component {
     /**
      * @private
      */
-    _onClickOk() {
+    async _onClickOk() {
+        await this.attachment.remove();
         this._dialogRef.comp._close();
-        this.attachment.remove();
         this.trigger('o-attachment-removed', { attachmentLocalId: this.props.attachmentLocalId });
     }