diff --git a/migrateUsers.js b/migrateUsers.js
index 4b261be..89f760a 100755
--- a/migrateUsers.js
+++ b/migrateUsers.js
@@ -33,7 +33,7 @@ for (let line of ldapSearchOutput.split('\n')) {
 console.log('Found usermapping:', users);
 
 for (let id in users) {
-    let uid = execSync(`${postgresCmd} -AXqtc "SELECT u.id FROM users u JOIN accounts a ON a.id=u.account_id WHERE a.username='${users[id]}'"`).toString().trim();
+    let uid = execSync(`${postgresCmd} -AXqtc "SELECT u.id FROM users u JOIN accounts a ON a.id=u.account_id WHERE NOT EXISTS (SELECT 1 FROM identities WHERE provider='openid_connect' AND uid='${users[id]}') AND a.username='${users[id]}'"`).toString().trim();
     if (!uid)
         continue;