diff --git a/bureau/admin/sql_list.php b/bureau/admin/sql_list.php
index 26fd2598..7fc1f237 100644
--- a/bureau/admin/sql_list.php
+++ b/bureau/admin/sql_list.php
@@ -95,7 +95,11 @@ for($i=0;$i<count($rdb);$i++) {
 <tr>
   <th><label for="dbn"><?php __("MySQL Database"); ?></label></th>
   <td>
-	<span class="int" id="dbnpfx"><?php echo $mem->user["login"]; ?>_</span><input type="text" class="int" name="dbn" id="dbn" value="" size="20" maxlength="30" />
+    <?php 
+    // Max 16 caracters for the database name if we want the mysql user to be automatically created.
+    $max_dbsufix_size=(16-strlen($mem->user["login"].'_'));
+    ?>
+	<span class="int" id="dbnpfx"><?php echo $mem->user["login"]; ?>_</span><input type="text" class="int" name="dbn" id="dbn" value="" size="20" maxlength="<?php echo $max_dbsufix_size ;?>" />
   </td>
 </tr>
 </table>