diff --git a/lang/en_utf8/error.php b/lang/en_utf8/error.php
index 92704932164..2cc6958919c 100644
--- a/lang/en_utf8/error.php
+++ b/lang/en_utf8/error.php
@@ -42,6 +42,7 @@ $string['invalidfiletype'] = '\"$a\" is not a valid file type';
 $string['invalidmd5'] = 'Invalid md5';
 $string['invalidrequest'] = 'Invalid request';
 $string['invalidrole'] = 'Invalid role';
+$string['invalidtexcommand'] = 'Forbidden TeX command ($a)';
 $string['invalidxmlfile'] = '\"$a\" is not a valid XML file';
 $string['loginasonecourse'] = 'You can not enter this course.<br /> You have to terminate the \"Login as\" session before entering any other course.';
 $string['loginasnoenrol'] = 'You can not use enrol or unenrol when in course \"Login as\" session';
@@ -86,4 +87,4 @@ $string['wrongdestpath'] = 'Wrong destination path';
 $string['wrongsourcebase'] = 'Wrong source URL base';
 $string['wrongzipfilename'] = 'Wrong ZIP file name';
 
-?>
\ No newline at end of file
+?>