diff --git a/dev/Model/Message.js b/dev/Model/Message.js
index 2e21b39b2..b9759d155 100644
--- a/dev/Model/Message.js
+++ b/dev/Model/Message.js
@@ -495,7 +495,7 @@ export class MessageModel extends AbstractModel {
 		// init BlockquoteSwitcher
 		this.body.querySelectorAll('blockquote:not(.rl-bq-switcher)').forEach(node => {
 			node.removeAttribute('style')
-			if (node.textContent.trim() && !node.parentNode.closest('blockquote')) {
+			if (node.textContent.trim() && !node.parentNode.closest?.('blockquote')) {
 				let h = node.clientHeight || getRealHeight(node);
 				if (0 === h || 100 < h) {
 					const el = Element.fromHTML('<span class="rlBlockquoteSwitcher">•••</span>');