diff --git a/packages/@aws-cdk/aws-iot-alpha/lib/scheduled-audit.ts b/packages/@aws-cdk/aws-iot-alpha/lib/scheduled-audit.ts
index 14cde5b10befe..94cf2dddff4be 100644
--- a/packages/@aws-cdk/aws-iot-alpha/lib/scheduled-audit.ts
+++ b/packages/@aws-cdk/aws-iot-alpha/lib/scheduled-audit.ts
@@ -165,6 +165,11 @@ export enum DayOfWeek {
    * Saturday
    */
   SATURDAY = 'SAT',
+
+  /**
+   * UNSET_VALUE
+   */
+  UNSET_VALUE = 'UNSET_VALUE',
 }
 
 /**