diff --git a/koha-tmpl/intranet-tmpl/prog/js/vue/modules/islands.ts b/koha-tmpl/intranet-tmpl/prog/js/vue/modules/islands.ts
index 808b39d895..dcc20afaba 100644
--- a/koha-tmpl/intranet-tmpl/prog/js/vue/modules/islands.ts
+++ b/koha-tmpl/intranet-tmpl/prog/js/vue/modules/islands.ts
@@ -107,6 +107,10 @@ export function hydrate(): void {
             }
 
             const component = await importFn();
+            if (customElements.get(name)) {
+                return;
+            }
+
             customElements.define(
                 name,
                 defineCustomElement(component as any, {