diff --git a/mod/chat/lib.php b/mod/chat/lib.php
index c8f68fc7238..da204e6d5e3 100644
--- a/mod/chat/lib.php
+++ b/mod/chat/lib.php
@@ -365,6 +365,8 @@ function chat_get_latest_message($chatid, $groupid=0) {
     }
 
     $result = rs_fetch_record($rs);
+    
+    rs_close($rs); 
 
     return $result;
 }