diff --git a/phpmyfaq/index.php b/phpmyfaq/index.php
index cb399764be..4ee927983d 100755
--- a/phpmyfaq/index.php
+++ b/phpmyfaq/index.php
@@ -169,7 +169,7 @@
 }
 
 // Login via local DB or LDAP or SSO
-if ($faqusername !== '' && ($faqpassword !== '' || $faqConfig->get('security.ssoSupport'))) {
+if (!is_null($faqusername) && (!is_null($faqpassword) || $faqConfig->get('security.ssoSupport'))) {
     $userAuth = new UserAuthentication($faqConfig, $user);
     $userAuth->setRememberMe($rememberMe ?? false);
     try {