diff --git a/ess/ess-server/src/main/java/cn/axzo/nanopart/ess/server/ess/OrgManager.java b/ess/ess-server/src/main/java/cn/axzo/nanopart/ess/server/ess/OrgManager.java
index f415c2ab..058edee0 100644
--- a/ess/ess-server/src/main/java/cn/axzo/nanopart/ess/server/ess/OrgManager.java
+++ b/ess/ess-server/src/main/java/cn/axzo/nanopart/ess/server/ess/OrgManager.java
@@ -98,7 +98,7 @@ public class OrgManager {
 		return superAdmin;
 	}
 
-	Optional<EssPerson> findSuperAdmin(Long ouId) {
+	private Optional<EssPerson> findSuperAdmin(Long ouId) {
 		EssOrg org = findOrgOrNull(ouId);
 		if (org == null)
 			return Optional.empty();