diff --git a/internal/db/db.go b/internal/db/db.go
index 400731b6..6cad404e 100644
--- a/internal/db/db.go
+++ b/internal/db/db.go
@@ -13,14 +13,15 @@ var db *gorm.DB
 
 func Init(d *gorm.DB) {
 	db = d
-	var err error
+	err := AutoMigrate(new(model.Storage), new(model.User), new(model.Meta), new(model.SettingItem), new(model.SearchNode))
 	switch conf.Conf.Database.Type {
 	case "sqlite3":
-		err = AutoMigrate(new(model.Storage), new(model.User), new(model.Meta), new(model.SettingItem), new(model.SearchNode))
 	case "mysql":
-		err = AutoMigrate(new(model.Storage), new(model.User), new(model.Meta), new(model.SettingItem), new(model.SearchNodeMySQL))
+		if err == nil {
+			tableName := fmt.Sprintf("%ssearch_nodes", conf.Conf.Database.TablePrefix)
+			db.Exec(fmt.Sprintf("CREATE FULLTEXT INDEX idx_%s_name_fulltext ON %s(name);", tableName, tableName))
+		}
 	case "postgres":
-		err = AutoMigrate(new(model.Storage), new(model.User), new(model.Meta), new(model.SettingItem), new(model.SearchNode))
 		if err == nil {
 			db.Exec("CREATE EXTENSION pg_trgm;")
 			db.Exec("CREATE EXTENSION btree_gin;")
diff --git a/internal/model/search.go b/internal/model/search.go
index 697e0a93..ddcaee28 100644
--- a/internal/model/search.go
+++ b/internal/model/search.go
@@ -18,13 +18,6 @@ type SearchReq struct {
 	PageReq
 }
 
-type SearchNodeMySQL struct {
-	Parent string `json:"parent" gorm:"index"`
-	Name   string `json:"name" gorm:"index:,class:FULLTEXT"`
-	IsDir  bool   `json:"is_dir"`
-	Size   int64  `json:"size"`
-}
-
 type SearchNode struct {
 	Parent string `json:"parent" gorm:"index"`
 	Name   string `json:"name"`