diff --git a/weed/filer/abstract_sql/abstract_sql_store.go b/weed/filer/abstract_sql/abstract_sql_store.go
index 33a237e87..bd1ac9734 100644
--- a/weed/filer/abstract_sql/abstract_sql_store.go
+++ b/weed/filer/abstract_sql/abstract_sql_store.go
@@ -203,7 +203,7 @@ func (store *AbstractSqlStore) ListDirectoryPrefixedEntries(ctx context.Context,
 		entries = append(entries, entry)
 	}
 
-	hasMore = int64(len(entries)) == limit + 1
+	hasMore = int64(len(entries)) == limit+1
 	if hasMore {
 		entries = entries[:limit]
 	}
diff --git a/weed/filer/cassandra/cassandra_store.go b/weed/filer/cassandra/cassandra_store.go
index 2c815aa1f..06fb3af46 100644
--- a/weed/filer/cassandra/cassandra_store.go
+++ b/weed/filer/cassandra/cassandra_store.go
@@ -201,7 +201,7 @@ func (store *CassandraStore) ListDirectoryEntries(ctx context.Context, dirPath u
 		glog.V(0).Infof("list iterator close: %v", err)
 	}
 
-	hasMore = int64(len(entries)) == limit + 1
+	hasMore = int64(len(entries)) == limit+1
 	if hasMore {
 		entries = entries[:limit]
 	}
diff --git a/weed/filer/filer_search.go b/weed/filer/filer_search.go
index d37699a5a..0fa57dd06 100644
--- a/weed/filer/filer_search.go
+++ b/weed/filer/filer_search.go
@@ -53,7 +53,7 @@ func (f *Filer) doListPatternMatchedEntries(ctx context.Context, p util.FullPath
 		return
 	}
 	if len(restNamePattern) == 0 {
-		return foundEntries, false,0, lastFileName, nil
+		return foundEntries, false, 0, lastFileName, nil
 	}
 	for _, entry := range foundEntries {
 		nameToTest := strings.ToLower(entry.Name())
diff --git a/weed/filer/mongodb/mongodb_store.go b/weed/filer/mongodb/mongodb_store.go
index 2549b6029..2e9556f1f 100644
--- a/weed/filer/mongodb/mongodb_store.go
+++ b/weed/filer/mongodb/mongodb_store.go
@@ -190,7 +190,7 @@ func (store *MongodbStore) ListDirectoryEntries(ctx context.Context, dirPath uti
 			"$gte": startFileName,
 		}
 	}
-	optLimit := int64(limit+1)
+	optLimit := int64(limit + 1)
 	opts := &options.FindOptions{Limit: &optLimit, Sort: bson.M{"name": 1}}
 	cur, err := store.connect.Database(store.database).Collection(store.collectionName).Find(ctx, where, opts)
 	for cur.Next(ctx) {
@@ -212,7 +212,7 @@ func (store *MongodbStore) ListDirectoryEntries(ctx context.Context, dirPath uti
 		entries = append(entries, entry)
 	}
 
-	hasMore = int64(len(entries)) == limit + 1
+	hasMore = int64(len(entries)) == limit+1
 	if hasMore {
 		entries = entries[:limit]
 	}
diff --git a/weed/filer/mysql/mysql_store.go b/weed/filer/mysql/mysql_store.go
index b9f7f06dd..70f729fc9 100644
--- a/weed/filer/mysql/mysql_store.go
+++ b/weed/filer/mysql/mysql_store.go
@@ -42,7 +42,7 @@ func (store *MysqlStore) Initialize(configuration util.Configuration, prefix str
 }
 
 func (store *MysqlStore) initialize(user, password, hostname string, port int, database string, maxIdle, maxOpen,
-    maxLifetimeSeconds int,	interpolateParams bool) (err error) {
+	maxLifetimeSeconds int, interpolateParams bool) (err error) {
 	//
 	store.SqlInsert = "INSERT INTO filemeta (dirhash,name,directory,meta) VALUES(?,?,?,?)"
 	store.SqlUpdate = "UPDATE filemeta SET meta=? WHERE dirhash=? AND name=? AND directory=?"
@@ -67,7 +67,7 @@ func (store *MysqlStore) initialize(user, password, hostname string, port int, d
 
 	store.DB.SetMaxIdleConns(maxIdle)
 	store.DB.SetMaxOpenConns(maxOpen)
-	store.DB.SetConnMaxLifetime(time.Duration(maxLifetimeSeconds)*time.Second)
+	store.DB.SetConnMaxLifetime(time.Duration(maxLifetimeSeconds) * time.Second)
 
 	if err = store.DB.Ping(); err != nil {
 		return fmt.Errorf("connect to %s error:%v", sqlUrl, err)