diff --git a/message/externallib.php b/message/externallib.php
index 8a19d2efb0a..e86f581500f 100644
--- a/message/externallib.php
+++ b/message/externallib.php
@@ -1717,7 +1717,7 @@ class core_message_external extends external_api {
         if (empty($CFG->messaging)) {
             throw new moodle_exception('disabled', 'message');
         }
-        
+
         // Warnings array, it can be empty at the end but is mandatory.
         $warnings = array();