diff --git a/dblayer.php b/dblayer.php
index 8d3286d..9501355 100644
--- a/dblayer.php
+++ b/dblayer.php
@@ -64,7 +64,7 @@ class dblayer extends PDO
   public function databasename ()
   {
     if ($this->db === null)
-      throw new Exception (dgettext("domframework", "Database not connected"));
+      throw new Exception (dgettext("domframework", "Database not connected"), 500);
     $vals = explode (";", substr (strstr ($this->dsn, ":"), 1));
     $dsnExplode = array ();
     foreach ($vals as $val)
@@ -81,7 +81,7 @@ class dblayer extends PDO
   public function listTables ()
   {
     if ($this->db === null)
-      throw new Exception (dgettext("domframework", "Database not connected"));
+      throw new Exception (dgettext("domframework", "Database not connected"), 500);
     switch ($this->db->getAttribute(PDO::ATTR_DRIVER_NAME))
     {
     case "sqlite":
@@ -114,7 +114,7 @@ class dblayer extends PDO
       break;
     default:
       throw new Exception (dgettext("domframework",
-                           "Unknown database driver in listTables"));
+                           "Unknown database driver in listTables"), 500);
     }
     return $res;
   }
@@ -151,7 +151,7 @@ class dblayer extends PDO
     }
     catch (Exception $e)
     {
-      throw new Exception ("PDO error : ".$e->getMessage());
+      throw new Exception ("PDO error : ".$e->getMessage(), 500);
     }
 
     // Force specifics initialisations
@@ -735,7 +735,7 @@ class dblayer extends PDO
   public function createTable ()
   {
     if ($this->db === null)
-      throw new Exception (_("Database not connected"));
+      throw new Exception (_("Database not connected"), 500);
     switch ($this->db->getAttribute(PDO::ATTR_DRIVER_NAME))
     {
     case "sqlite":
@@ -761,7 +761,7 @@ class dblayer extends PDO
           break;
         case "varchar":
           if (!isset ($params[1]))
-            throw new Exception (_("No Size provided for varchar field"));
+            throw new Exception (_("No Size provided for varchar field"), 500);
           $sql .= "VARCHAR(".$params[1].")";
           $params  = array_slice ($params, 2);
           break;
@@ -803,7 +803,7 @@ class dblayer extends PDO
       {
         if (!is_array ($this->unique))
           throw new Exception (
-                              _("The Unique field definition is not an array"));
+                              _("The Unique field definition is not an array"), 500);
         foreach ($this->unique as $u)
         {
           $sql .= ",\n  UNIQUE (`";
@@ -839,7 +839,7 @@ class dblayer extends PDO
         $sql .= "`$field` ";
         // Type of field : in $params[0]
         if (!isset ($params[0]))
-          throw new Exception (_("No database type defined for field"));
+          throw new Exception (_("No database type defined for field"), 500);
         switch ($params[0])
         {
         case "integer":
@@ -848,7 +848,7 @@ class dblayer extends PDO
           break;
         case "varchar":
           if (!isset ($params[1]))
-            throw new Exception (_("No Size provided for varchar field"));
+            throw new Exception (_("No Size provided for varchar field"), 500);
           $sql .= "VARCHAR(".$params[1].")";
           $params  = array_slice ($params, 2);
           break;