diff --git a/libs/wingsdk/src/target-awscdk/schedule.ts b/libs/wingsdk/src/target-awscdk/schedule.ts
index 55d4bc7f700..5a149527eea 100644
--- a/libs/wingsdk/src/target-awscdk/schedule.ts
+++ b/libs/wingsdk/src/target-awscdk/schedule.ts
@@ -38,15 +38,11 @@ export class Schedule extends cloud.Schedule {
       let cronOpt: { [k: string]: string } = {
         minute: cronArr[0],
         hour: cronArr[1],
+        day: cronArr[2],
         month: cronArr[3],
+        weekDay: cronArr[4],
         year: "*",
       };
-      if (cronArr[2] !== "?") {
-        cronOpt.day = cronArr[2];
-      }
-      if (cronArr[4] !== "?") {
-        cronOpt.weekDay = cronArr[4];
-      }
 
       this.scheduleExpression = EventSchedule.cron(cronOpt);
     } else {
diff --git a/libs/wingsdk/test/target-awscdk/schedule.test.ts b/libs/wingsdk/test/target-awscdk/schedule.test.ts
index b61cccc473f..0165dc9b50d 100644
--- a/libs/wingsdk/test/target-awscdk/schedule.test.ts
+++ b/libs/wingsdk/test/target-awscdk/schedule.test.ts
@@ -139,3 +139,17 @@ test("schedule with rate less than 1 minute", () => {
     })
   ).toThrow("rate can not be set to less than 1 minute.");
 });
+
+test("cron with Day-of-month and Day-of-week setting with *", () => {
+  // GIVEN
+  const app = new awscdk.App({ outdir: mkdtemp(), ...CDK_APP_OPTS });
+
+  // THEN
+  expect(() =>
+    Schedule._newSchedule(app, "Schedule", {
+      cron: "0/1 * * * *",
+    })
+  ).toThrow(
+    "cannot use * in both the Day-of-month and Day-of-week fields. If you use it in one, you must use ? in the other"
+  );
+});
\ No newline at end of file