diff --git a/polkadot/runtime/common/src/coretime/benchmarking.rs b/polkadot/runtime/common/src/coretime/benchmarking.rs
index e1f69cdc2694..6ec36fa73e35 100644
--- a/polkadot/runtime/common/src/coretime/benchmarking.rs
+++ b/polkadot/runtime/common/src/coretime/benchmarking.rs
@@ -19,10 +19,12 @@
 #![cfg(feature = "runtime-benchmarks")]
 
 use super::{Pallet, *};
+use crate::coretime;
 use assigner_bulk::MAX_ASSIGNMENTS_PER_SCHEDULE;
 use frame_benchmarking::v2::*;
-use frame_system::RawOrigin;
+//use frame_system::RawOrigin;
 //use xcm::latest::prelude::*;
+//use pallet_xcm::Origin;
 
 #[benchmarks]
 mod benchmarks {
@@ -31,10 +33,27 @@ mod benchmarks {
 	fn assign_core(s: Linear<0, MAX_ASSIGNMENTS_PER_SCHEDULE>) {
 		// Setup
 		let caller: <T as frame_system::Config>::AccountId = whitelisted_caller();
-		// TODO: Construct a proper Xcm broker parachain message origin
-		// let broker_id: u32 = 1004;
-		// let broker_origin = <T as Config>::XcmPallet::Origin::Xcm(MultiLocation { parents: 0,
-		// interior: X1(Parachain(broker_id)) });
+		// TODO: This value is copied from BROKER_ID in rococo runtime constants.
+		// Perhaps provide it in a more future proof way if worth the extra 
+		// dependency.
+		let broker_id: u32 = 1004;
+		/*let broker_origin: <T as frame_system::Config>::RuntimeOrigin = RuntimeOrigin {
+			caller: Origin::Xcm(MultiLocation { parents: 0, interior: X1(Parachain(broker_id)) }),
+			RawOrigin::Signed(caller.into())
+		}*/
+		let successful_origin: T::RuntimeOrigin =
+		<<T as coretime::Config>::ExternalBrokerOrigin as EnsureOrigin<_>>::try_successful_origin()
+			.expect("EnsureBrokerOrigin has no successful origin required for the test");
+		// Maybe use this kind of stuff to modify the origin after constructing via try_successful_origin
+		/*fn try_origin(outer: O) -> Result<Self::Success, O> {
+			outer.try_with_caller(|caller| {
+				caller.try_into().and_then(|o| match o {
+					Origin::Xcm(location) if F::contains(&location) => Ok(location),
+					Origin::Xcm(location) => Err(Origin::Xcm(location).into()),
+					o => Err(o.into()),
+				})
+			})
+		}*/
 
 		// Use valid assignment set with maximum number of assignments to maximize work
 		let assignments: Vec<(CoreAssignment, PartsOf57600)> = vec![576u16; s as usize]
@@ -45,7 +64,7 @@ mod benchmarks {
 
 		#[extrinsic_call]
 		_(
-			RawOrigin::Signed(caller.into()),
+			successful_origin as T::RuntimeOrigin,
 			CoreIndex(0),
 			BlockNumberFor::<T>::from(5u32),
 			assignments,