diff --git a/data/interface.go b/data/interface.go
index e89f12b29..d9c6e0460 100644
--- a/data/interface.go
+++ b/data/interface.go
@@ -239,10 +239,10 @@ type ChainHandler interface {
 	GetGenesisHeaderHash() []byte
 	SetGenesisHeaderHash(hash []byte)
 	GetCurrentBlockHeader() HeaderHandler
-	SetCurrentBlockHeader(bh HeaderHandler) error
+	SetCurrentBlockHeaderAndRootHash(bh HeaderHandler, rootHash []byte) error
 	GetCurrentBlockHeaderHash() []byte
 	SetCurrentBlockHeaderHash(hash []byte)
-	GetCurrentBlockCommittedRootHash() []byte
+	GetCurrentBlockRootHash() []byte
 	IsInterfaceNil() bool
 }