diff --git a/auth/ldap/lang/en/auth_ldap.php b/auth/ldap/lang/en/auth_ldap.php
index a5285dda7f9..f1685965007 100644
--- a/auth/ldap/lang/en/auth_ldap.php
+++ b/auth/ldap/lang/en/auth_ldap.php
@@ -119,7 +119,7 @@ $string['didntfindexpiretime'] = 'password_expire() didn\'t find expiration time
 $string['didntgetusersfromldap'] = "Did not get any users from LDAP -- error? -- exiting\n";
 $string['gotcountrecordsfromldap'] = "Got {\$a} records from LDAP\n";
 $string['morethanoneuser'] = 'Strange! More than one user record found in ldap. Only using the first one.';
-$string['needbcmath'] = 'You need the BCMath extension to use grace logins with Active Directory';
+$string['needbcmath'] = 'You need the BCMath extension to use expired password checking with Active Directory.';
 $string['needmbstring'] = 'You need the mbstring extension to change passwords in Active Directory';
 $string['nodnforusername'] = 'Error in user_update_password(). No DN for: {$a->username}';
 $string['noemail'] = 'Tried to send you an email but failed!';