diff --git a/object/ldap_conn.go b/object/ldap_conn.go
index 01f049f0..bc9f716d 100644
--- a/object/ldap_conn.go
+++ b/object/ldap_conn.go
@@ -305,7 +305,7 @@ func SyncLdapUsers(owner string, syncUsers []LdapUser, ldapId string) (existUser
 				return nil, nil, err
 			}
 
-			name, err := syncUser.buildLdapUserName()
+			name, err := syncUser.buildLdapUserName(owner)
 			if err != nil {
 				return nil, nil, err
 			}
@@ -354,10 +354,10 @@ func GetExistUuids(owner string, uuids []string) ([]string, error) {
 	return existUuids, nil
 }
 
-func (ldapUser *LdapUser) buildLdapUserName() (string, error) {
+func (ldapUser *LdapUser) buildLdapUserName(owner string) (string, error) {
 	user := User{}
 	uidWithNumber := fmt.Sprintf("%s_%s", ldapUser.Uid, ldapUser.UidNumber)
-	has, err := ormer.Engine.Where("name = ? or name = ?", ldapUser.Uid, uidWithNumber).Get(&user)
+	has, err := ormer.Engine.Where("owner = ? and (name = ? or name = ?)", owner, ldapUser.Uid, uidWithNumber).Get(&user)
 	if err != nil {
 		return "", err
 	}