diff --git a/migration/migrate.go b/migration/migrate.go
index 490ee3a..19e6c81 100644
--- a/migration/migrate.go
+++ b/migration/migrate.go
@@ -129,7 +129,7 @@ func InitMigration(mConfig *MigrationConfig) error {
 		zlogger.Logger.Error(err)
 		return err
 	}
-	mConfig.ChunkSize = dStorageService.GetChunkWriteSize()
+	mConfig.ChunkSize = int64(mConfig.ChunkNumber) * dStorageService.GetChunkWriteSize()
 	zlogger.Logger.Info("Getting aws storage service")
 	awsStorageService, err := s3.GetAwsClient(
 		mConfig.Bucket,