diff --git a/client/relay-chain-inprocess-interface/src/lib.rs b/client/relay-chain-inprocess-interface/src/lib.rs
index e19f794fb38e..d44f7f743253 100644
--- a/client/relay-chain-inprocess-interface/src/lib.rs
+++ b/client/relay-chain-inprocess-interface/src/lib.rs
@@ -20,9 +20,10 @@ use async_trait::async_trait;
 use cumulus_primitives_core::{
 	relay_chain::{
 		v2::{
-			CommittedCandidateReceipt, OccupiedCoreAssumption, ParachainHost, SessionIndex,
+			CommittedCandidateReceipt, OccupiedCoreAssumption, SessionIndex,
 			ValidatorId,
 		},
+		runtime_api::ParachainHost,
 		Block as PBlock, BlockId, Hash as PHash, Header as PHeader, InboundHrmpMessage,
 	},
 	InboundDownwardMessage, ParaId, PersistedValidationData,
diff --git a/primitives/core/src/lib.rs b/primitives/core/src/lib.rs
index c6b85e7da698..69ab4e1488e5 100644
--- a/primitives/core/src/lib.rs
+++ b/primitives/core/src/lib.rs
@@ -35,7 +35,7 @@ pub use polkadot_primitives::v2::{
 /// A module that re-exports relevant relay chain definitions.
 pub mod relay_chain {
 	pub use polkadot_core_primitives::*;
-	pub use polkadot_primitives::{v2, v2::well_known_keys};
+	pub use polkadot_primitives::{v2, v2::well_known_keys, runtime_api};
 }
 
 /// An inbound HRMP message.