diff --git a/src/components/organisms/administration/ImportUsers.vue b/src/components/organisms/administration/ImportUsers.vue
index 55b865c2a0..c7ee382fa3 100644
--- a/src/components/organisms/administration/ImportUsers.vue
+++ b/src/components/organisms/administration/ImportUsers.vue
@@ -183,7 +183,7 @@
 				</template>
 
 				<template #[`item.classNames`]="{ item }">
-					{{ item.classNames.join(", ") }}
+					{{ item.classNames?.join(", ") }}
 				</template>
 
 				<template #[`item.match`]="{ item }">