diff --git a/src/resolvers/MutationResolvers.ts b/src/resolvers/MutationResolvers.ts
index 90dd4c8..ac8e1ea 100644
--- a/src/resolvers/MutationResolvers.ts
+++ b/src/resolvers/MutationResolvers.ts
@@ -25,7 +25,9 @@ export const MutationResolvers: Resolvers<ServerContext> = {
 
       const notificationData: NotificationSchedulingArguments = {
         ...args.input,
-        secondsThreshold: ETANotificationScheduler.defaultSecondsThresholdForNotificationToFire,
+        secondsThreshold: typeof args.input.secondsThreshold === 'number'
+          ? args.input.secondsThreshold
+          : ETANotificationScheduler.defaultSecondsThresholdForNotificationToFire,
       }
 
       await context.notificationService.scheduleNotification(notificationData);