diff --git a/ui/admin/app/routes/scopes/scope/host-catalogs/new.js b/ui/admin/app/routes/scopes/scope/host-catalogs/new.js
index 40cf6f01a..588ecac90 100644
--- a/ui/admin/app/routes/scopes/scope/host-catalogs/new.js
+++ b/ui/admin/app/routes/scopes/scope/host-catalogs/new.js
@@ -17,6 +17,14 @@ export default class ScopesScopeHostCatalogsNewRoute extends Route {
 
   // =methods
 
+  /**
+   * Rollback/destroy any new, unsaved instances from this route before
+   * creating another.
+   */
+  beforeModel() {
+    if (this.currentModel?.isNew) this.currentModel.rollbackAttributes();
+  }
+
   /**
    * Creates a new unsaved host catalog belonging to the current scope.
    * @return {HostCatalogModel}