diff --git a/mod/chat/locallib.php b/mod/chat/locallib.php
index 31ea0c1e1ad..21dd977c88e 100644
--- a/mod/chat/locallib.php
+++ b/mod/chat/locallib.php
@@ -237,6 +237,7 @@ class user_message implements renderable {
      */
     public function __construct($senderprofile, $sendername, $avatar, $mymessageclass, $time, $message, $theme) {
 
+        $this->senderprofile = $senderprofile;
         $this->sendername = $sendername;
         $this->avatar = $avatar;
         $this->mymessageclass = $mymessageclass;