diff --git a/pallets/jobs/src/lib.rs b/pallets/jobs/src/lib.rs
index 48990697a..5bf4a75a0 100644
--- a/pallets/jobs/src/lib.rs
+++ b/pallets/jobs/src/lib.rs
@@ -110,6 +110,10 @@ pub mod module {
 		NoRewards,
 		/// Not enough validators to exit
 		NotEnoughValidators,
+		/// empty result
+		EmptyResult,
+		/// empty job
+		EmptyJob,
 	}
 
 	#[pallet::event]
@@ -308,6 +312,9 @@ pub mod module {
 		) -> DispatchResult {
 			let _caller = ensure_signed(origin)?;
 
+			// sanity check
+			ensure!(result.is_empty(), Error::<T>::EmptyResult);
+
 			// Ensure the job exists
 			let job_info =
 				SubmittedJobs::<T>::get(job_key.clone(), job_id).ok_or(Error::<T>::JobNotFound)?;