diff --git a/web/lib/MRBS/DBException.php b/web/lib/MRBS/DBException.php
index d7ea0bddf7..cf9bb106c8 100644
--- a/web/lib/MRBS/DBException.php
+++ b/web/lib/MRBS/DBException.php
@@ -7,7 +7,7 @@
 class DBException extends PDOException
 {
 
-  public function __construct($message, $code=0, PDOException $previous=null, $sql=null, $params=null)
+  public function __construct(string $message, int $code=0, PDOException $previous=null, string $sql=null, array $params=null)
   {
     if (isset($sql))
     {