diff --git a/domain/consensus/processes/blockvalidator/block_header_in_isolation.go b/domain/consensus/processes/blockvalidator/block_header_in_isolation.go
index 6266ab1bc1..26e1399f4d 100644
--- a/domain/consensus/processes/blockvalidator/block_header_in_isolation.go
+++ b/domain/consensus/processes/blockvalidator/block_header_in_isolation.go
@@ -65,14 +65,12 @@ func (v *blockValidator) checkBlockVersion(header externalapi.BlockHeader) error
 				ruleerrors.ErrWrongBlockVersion, "The block version should be %d", constants.BlockVersion)
 		}
 	*/
-	if header.DAAScore() >= v.hfDAAScore {
-		if header.Version() != constants.BlockVersionKHashV2 {
-			log.Warnf("After HF1 the block version should be %d - block[%d][v%d]", constants.BlockVersionKHashV2, header.DAAScore(), header.Version())
-		}
-	} else {
-		if header.Version() != constants.BlockVersionKHashV1 {
-			log.Warnf("Before HF1 the block version should be %d - block[%d][v%d]", constants.BlockVersionKHashV1, header.DAAScore(), header.Version())
-		}
+	if header.DAAScore() >= v.hfDAAScore && header.Version() != constants.BlockVersionKHashV2 {
+		log.Warnf("After HF1 the block version should be %d - block[%d][v%d]", constants.BlockVersionKHashV2, header.DAAScore(), header.Version())
+		return errors.Wrapf(ruleerrors.ErrWrongBlockVersion, "The block version should be %d", constants.BlockVersionKHashV2)
+	} else if header.DAAScore() < v.hfDAAScore && header.Version() != constants.BlockVersionKHashV1 {
+		log.Warnf("Before HF1 the block version should be %d - block[%d][v%d]", constants.BlockVersionKHashV1, header.DAAScore(), header.Version())
+		return errors.Wrapf(ruleerrors.ErrWrongBlockVersion, "The block version should be %d", constants.BlockVersionKHashV1)
 	}
 	return nil
 }