diff --git a/src/Storages/MergeTree/IDataPartStorage.h b/src/Storages/MergeTree/IDataPartStorage.h
index 19af6085547..aa97b1531f1 100644
--- a/src/Storages/MergeTree/IDataPartStorage.h
+++ b/src/Storages/MergeTree/IDataPartStorage.h
@@ -55,8 +55,6 @@ struct MergeTreeDataPartChecksums;
 class IReservation;
 using ReservationPtr = std::unique_ptr<IReservation>;
 
-class IStoragePolicy;
-
 class IDisk;
 using DiskPtr = std::shared_ptr<IDisk>;