diff --git a/auth.py b/auth.py
index e9b301a..e42ac51 100644
--- a/auth.py
+++ b/auth.py
@@ -1,5 +1,5 @@
 import ldap
-from flask import Flask, render_template, request
+from flask import Flask, render_template, request, make_response
 from time import sleep
 app = Flask('auth')
 app.config.from_object(__name__)
@@ -13,13 +13,14 @@ def form():
 def login():
     conn = ldap.initialize(app.config['LDAP_URL'])
     conn.start_tls_s()
+    res,code = 'OK', 200
     try:
         conn.simple_bind_s(app.config['DN_STRING'] % request.form['login'],
                 request.form.get('password', ''))
     except ldap.LDAPError:
         sleep(app.config['FAIL_DELAY'])
-        return "ERROR"
-    return "OK"
+        res,code = 'ERROR', 401
+    return make_response(res, code, { 'Content-Type': 'text/plain' })
 
 if __name__ == '__main__':
     app.run('0.0.0.0', 8082, debug=True)