diff --git a/lang/en/auth_oidc.php b/lang/en/auth_oidc.php
index c6031d7e0..1be8a95c2 100644
--- a/lang/en/auth_oidc.php
+++ b/lang/en/auth_oidc.php
@@ -31,6 +31,7 @@
 
 $string['pluginname'] = 'OpenID Connect';
 $string['auth_oidcdescription'] = 'The OpenID Connect authentication plugin provides single-sign-on functionality using configurable IdP.';
+$string['auth_settings_validation_error'] = 'There are problems with the OpenID Connect settings:';
 
 // Configuration pages.
 $string['settings_page_other_settings'] = 'Other options';