diff --git a/resources/lang/nl/errors.php b/resources/lang/nl/errors.php
index f83f56a46..a6cdbf8f7 100644
--- a/resources/lang/nl/errors.php
+++ b/resources/lang/nl/errors.php
@@ -17,6 +17,12 @@ return [
     'ldap_fail_authed' => 'LDAP toegang was niet mogelijk met de opgegeven dn & wachtwoord',
     'ldap_extension_not_installed' => 'LDAP PHP extension not installed',
     'ldap_cannot_connect' => 'Kon niet met de LDAP server verbinden',
+    'saml_already_logged_in' => 'Already logged in',
+    'saml_user_not_registered' => 'The user :name is not registered and automatic registration is disabled',
+    'saml_no_email_address' => 'Could not find an email address, for this user, in the data provided by the external authentication system',
+    'saml_invalid_response_id' => 'The request from the external authentication system is not recognised by a process started by this application. Navigating back after a login could cause this issue.',
+    'saml_fail_authed' => 'Login using :system failed, system did not provide successful authorization',
+    'saml_email_exists' => 'Registration unsuccessful since a user already exists with email address ":email"',
     'social_no_action_defined' => 'Geen actie gedefineerd',
     'social_login_bad_response' => "Error received during :socialAccount login: \n:error",
     'social_account_in_use' => 'Dit :socialAccount account is al in gebruik, Probeer in te loggen met de :socialAccount optie.',