diff --git a/lang/en_utf8/error.php b/lang/en_utf8/error.php
index 3f3ea4cfd56..358c569ce01 100644
--- a/lang/en_utf8/error.php
+++ b/lang/en_utf8/error.php
@@ -27,6 +27,8 @@ $string['fieldrequired'] = '\"$a\" is a required field';
 $string['filenotfound'] = 'Sorry, the requested file could not be found';
 $string['groupalready'] = 'User already belongs to group $a';
 $string['groupunknown'] = 'Group $a not associated to specified course';
+$string['guestnoeditprofile'] = 'The guest user cannot edit their profile';
+$string['guestnoeditprofileother'] = 'The guest user profile cannot be edited';
 $string['invalidcourse'] = 'Invalid course';
 $string['invalidfieldname'] = '\"$a\" is not a valid field name';
 $string['invalidfiletype'] = '\"$a\" is not a valid file type';