diff --git a/plugins/ilert/config.d.ts b/plugins/ilert/config.d.ts
index 52712454e8..6bf3f569ab 100644
--- a/plugins/ilert/config.d.ts
+++ b/plugins/ilert/config.d.ts
@@ -14,7 +14,7 @@
  * limitations under the License.
  */
 export interface Config {
-  ilert: {
+  ilert?: {
     /**
      * Domain used by users to access iLert web UI.
      * Example: https://my-app.ilert.com/