diff --git a/relay/kusama/src/lib.rs b/relay/kusama/src/lib.rs
index d1dcbfb245..4bece04186 100644
--- a/relay/kusama/src/lib.rs
+++ b/relay/kusama/src/lib.rs
@@ -1265,7 +1265,7 @@ impl parachains_paras::Config for Runtime {
 	type QueueFootprinter = ParaInclusion;
 	type NextSessionRotation = Babe;
 	type OnNewHead = Registrar;
-	type AssignCoretime = ();
+	type AssignCoretime = CoretimeAssignmentProvider;
 }
 
 parameter_types! {