diff --git a/leveldb.go b/leveldb.go
index b55f3fc..3f7f87a 100644
--- a/leveldb.go
+++ b/leveldb.go
@@ -74,10 +74,8 @@ func (ldb *LevelDBBackend) Store(hash, key, value []byte) (exists bool, err erro
 	}
 
 	wo := leveldb.NewWriteOptions()
-	defer wo.Close()
-	if err = ldb.db.Put(wo, key, value); err != nil {
-		return
-	}
+	err = ldb.db.Put(wo, key, value)
+	wo.Close()
 
 	return
 }
@@ -87,10 +85,11 @@ func (ldb *LevelDBBackend) BeginTransaction() error {
 	return nil
 }
 
-func (ldb *LevelDBBackend) CommitTransaction() error {
+func (ldb *LevelDBBackend) CommitTransaction() (err error) {
 	tx := ldb.tx
 	ldb.tx = nil
 	wo := leveldb.NewWriteOptions()
-	defer wo.Close()
-	return ldb.db.Write(wo, tx)
+	err =  ldb.db.Write(wo, tx)
+    wo.Close()
+    return
 }