diff --git a/weed/s3iam/s3iam_filer_store.go b/weed/s3iam/s3iam_filer_store.go
index 22bce2bc4..045681a99 100644
--- a/weed/s3iam/s3iam_filer_store.go
+++ b/weed/s3iam/s3iam_filer_store.go
@@ -33,7 +33,7 @@ func (ifs *IAMFilerStore) LoadIAMConfig(config *iam_pb.S3ApiConfiguration) error
 	if err != nil {
 		return err
 	}
-	err = ifs.loadIAMConfigFromEntryExtended(&resp.Entry.Extended, config)
+	err = ifs.loadIAMConfigFromEntry(resp.Entry.Content, config)
 	if err != nil {
 		return err
 	}
@@ -51,14 +51,12 @@ func (ifs *IAMFilerStore) SaveIAMConfig(config *iam_pb.S3ApiConfiguration) error
 			Collection:  "",
 			Replication: "",
 		},
-		Extended: make(map[string][]byte),
+		Content: []byte{},
 	}
-
-	err := ifs.saveIAMConfigToEntryExtended(&entry.Extended, config)
+	err := ifs.saveIAMConfigToEntry(entry.Content, config)
 	if err != nil {
 		return err
 	}
-
 	_, err = filer_pb.LookupEntry(*ifs.client, ifs.getIAMConfigRequest())
 	if err == filer_pb.ErrNotFound {
 		err = filer_pb.CreateEntry(*ifs.client, &filer_pb.CreateEntryRequest{
@@ -81,24 +79,17 @@ func (ifs *IAMFilerStore) SaveIAMConfig(config *iam_pb.S3ApiConfiguration) error
 	return nil
 }
 
-func (ifs *IAMFilerStore) loadIAMConfigFromEntryExtended(extended *map[string][]byte, config *iam_pb.S3ApiConfiguration) error {
-	for _, ident := range *extended {
-		identity := &iam_pb.Identity{}
-		if err := proto.Unmarshal(ident, identity); err != nil {
-			return err
-		}
-		config.Identities = append(config.Identities, identity)
+func (ifs *IAMFilerStore) loadIAMConfigFromEntry(content []byte, config *iam_pb.S3ApiConfiguration) error {
+	if err := proto.Unmarshal(content, config); err != nil {
+		return err
 	}
 	return nil
 }
 
-func (ifs *IAMFilerStore) saveIAMConfigToEntryExtended(extended *map[string][]byte, config *iam_pb.S3ApiConfiguration) error {
-	for _, identity := range config.Identities {
-		ident, err := proto.Marshal(identity)
-		if err != nil {
-			return err
-		}
-		(*extended)[identity.Name] = ident
+func (ifs *IAMFilerStore) saveIAMConfigToEntry(content []byte, config *iam_pb.S3ApiConfiguration) error {
+	content, err := proto.Marshal(config)
+	if err != nil {
+		return err
 	}
 	return nil
 }
diff --git a/weed/s3iam/s3iam_filer_store_test.go b/weed/s3iam/s3iam_filer_store_test.go
index b87dd4f17..fca83ee92 100644
--- a/weed/s3iam/s3iam_filer_store_test.go
+++ b/weed/s3iam/s3iam_filer_store_test.go
@@ -50,14 +50,13 @@ func TestS3Conf(t *testing.T) {
 			},
 		},
 	}
+	content := []byte{}
+	_ = ifs.saveIAMConfigToEntry(content, s3Conf)
 	s3ConfSaved := &iam_pb.S3ApiConfiguration{}
-	extended := make(map[string][]byte)
-	_ = ifs.saveIAMConfigToEntryExtended(&extended, s3Conf)
-	_ = ifs.loadIAMConfigFromEntryExtended(&extended, s3ConfSaved)
+	_ = ifs.loadIAMConfigFromEntry(content, s3ConfSaved)
 
 	assert.Equal(t, "some_name", s3ConfSaved.Identities[0].Name)
 	assert.Equal(t, "some_read_only_user", s3ConfSaved.Identities[1].Name)
 	assert.Equal(t, "some_access_key1", s3ConfSaved.Identities[0].Credentials[0].AccessKey)
 	assert.Equal(t, "some_secret_key2", s3ConfSaved.Identities[1].Credentials[0].SecretKey)
-
 }