diff --git a/src/lib/components/common/Collapsible.svelte b/src/lib/components/common/Collapsible.svelte
index 54d81628b..e01a564f5 100644
--- a/src/lib/components/common/Collapsible.svelte
+++ b/src/lib/components/common/Collapsible.svelte
@@ -13,6 +13,9 @@
 	dayjs.extend(relativeTime);
 
 	async function loadLocale(locales) {
+		if (!locales || !Array.isArray(locales)) {
+			return;
+		}
 		for (const locale of locales) {
 			try {
 				dayjs.locale(locale);