diff --git a/server/plugin/plg_backend_ldap/index.go b/server/plugin/plg_backend_ldap/index.go
index ba3982e6..6194be9d 100644
--- a/server/plugin/plg_backend_ldap/index.go
+++ b/server/plugin/plg_backend_ldap/index.go
@@ -40,8 +40,6 @@ func (this LDAP) Init(params map[string]string, app *App) (IBackend, error) {
 	if obj := LDAPCache.Get(params); obj != nil {
 		return obj.(*LDAP), nil
 	}
-	params["hostname"] = strings.TrimPrefix("ldap://", params["hostname"])
-	params["hostname"] = strings.TrimPrefix("ldaps://", params["hostname"])
 
 	dialURL := func() string {
 		if params["port"] == "" {