diff --git a/lib/dmllib.php b/lib/dmllib.php
index 0fd9f1b1799..defb681c136 100644
--- a/lib/dmllib.php
+++ b/lib/dmllib.php
@@ -1256,8 +1256,8 @@ function sql_ilike() {
 
 
 /**
- * Returns the proper SQL to do LIKE in a case-insensitive way
- *
+ * Returns the proper SQL (for the dbms in use) to concatenate $firstname and $lastname
+ * 
  * @uses $CFG
  * @param string $firstname User's first name
  * @param string $lastname User's last name