diff --git a/server/db/mysql/tenant_adapter.go b/server/db/mysql/tenant_adapter.go
index 47e012b..80b054f 100644
--- a/server/db/mysql/tenant_adapter.go
+++ b/server/db/mysql/tenant_adapter.go
@@ -140,7 +140,7 @@ func profileSeedFromPublic(public any) (nickname, avatarFileID string) {
 			break
 		}
 	}
-	for _, key := range []string{"avatar_file_id", "photo", "avatar"} {
+	for _, key := range []string{"avatar_file_id"} {
 		if value := strings.TrimSpace(fmt.Sprint(values[key])); value != "" && value != "<nil>" {
 			avatarFileID = value
 			break
diff --git a/server/db/mysql/user_identity_schema.go b/server/db/mysql/user_identity_schema.go
index d528e0b..8ffe3f1 100644
--- a/server/db/mysql/user_identity_schema.go
+++ b/server/db/mysql/user_identity_schema.go
@@ -434,9 +434,7 @@ func backfillProfileDisplay(ctx context.Context, conn *sqlx.Conn, usersScoped bo
 		NULLIF(JSON_UNQUOTE(JSON_EXTRACT(u.public,'$.name')), '')
 	)`
 	avatarExpr := `COALESCE(
-		NULLIF(JSON_UNQUOTE(JSON_EXTRACT(u.public,'$.avatar_file_id')), ''),
-		NULLIF(JSON_UNQUOTE(JSON_EXTRACT(u.public,'$.photo')), ''),
-		NULLIF(JSON_UNQUOTE(JSON_EXTRACT(u.public,'$.avatar')), '')
+		NULLIF(JSON_UNQUOTE(JSON_EXTRACT(u.public,'$.avatar_file_id')), '')
 	)`
 	if usersScoped {
 		if _, err = conn.ExecContext(ctx, `INSERT IGNORE INTO im_user_profiles(id,tenant_id,user_id,nickname,avatar_file_id,public_account)
diff --git a/server/db/mysql/user_identity_test.go b/server/db/mysql/user_identity_test.go
index d9c3458..b756fe3 100644
--- a/server/db/mysql/user_identity_test.go
+++ b/server/db/mysql/user_identity_test.go
@@ -64,10 +64,14 @@ func TestProfilePublicFromFields(t *testing.T) {
 
 func TestProfileSeedFromPublic(t *testing.T) {
 	nickname, avatar := profileSeedFromPublic(map[string]any{
-		"fn":    "旧昵称",
-		"photo": "file_avatar_1",
+		"fn":             "旧昵称",
+		"avatar_file_id": "file_avatar_1",
 	})
 	if nickname != "旧昵称" || avatar != "file_avatar_1" {
 		t.Fatalf("unexpected profile seed nickname=%q avatar=%q", nickname, avatar)
 	}
+	_, avatar = profileSeedFromPublic(map[string]any{"photo": "https://example.com/avatar.png"})
+	if avatar != "" {
+		t.Fatalf("photo URL must not be treated as avatar_file_id: %q", avatar)
+	}
 }