diff --git a/x-pack/plugins/cross_cluster_replication/server/routes/api/cross_cluster_replication/register_permissions_route.ts b/x-pack/plugins/cross_cluster_replication/server/routes/api/cross_cluster_replication/register_permissions_route.ts
index b8eb5ae14750e3..008828d264a2b7 100644
--- a/x-pack/plugins/cross_cluster_replication/server/routes/api/cross_cluster_replication/register_permissions_route.ts
+++ b/x-pack/plugins/cross_cluster_replication/server/routes/api/cross_cluster_replication/register_permissions_route.ts
@@ -43,13 +43,13 @@ export const registerPermissionsRoute = ({
         });
 
         const missingClusterPrivileges = Object.keys(cluster).reduce(
-          (permissions: any, permissionName: any) => {
+          (permissions: string[], permissionName: string) => {
             if (!cluster[permissionName]) {
               permissions.push(permissionName);
-              return permissions;
             }
+            return permissions;
           },
-          [] as any[]
+          []
         );
 
         return response.ok({