diff --git a/dblayeroo.php b/dblayeroo.php
index a3fc6a4..8786935 100644
--- a/dblayeroo.php
+++ b/dblayeroo.php
@@ -2609,7 +2609,7 @@ class dblayeroo
   // {{{
   {
     if (! is_array ($values))
-      $this->DBException ("Invalid values to normalize : not an array");
+      $this->DBException ("Invalid values to normalize : not an array", 406);
     $values = array_map ("trim", $values);
     return $values;
   }
@@ -2838,7 +2838,7 @@ class dblayeroo
       }
       if (count ($errors) == 0 && count ($objTmp->execute ()))
         $this->DBException (dgettext ("domframework",
-          "An entry with these values already exists"));
+          "An entry with these values already exists"), 406);
       unset ($objTmp);
     }
 
@@ -2910,10 +2910,10 @@ class dblayeroo
     $values = $this->setValues;
     $errors = $this->checkRealTypes ($values, $update);
     if (count ($errors))
-      $this->DBException (reset ($errors));
+      $this->DBException (reset ($errors), 406);
     $errors = $this->verify ($values, $update);
     if (count ($errors))
-      $this->DBException (reset ($errors));
+      $this->DBException (reset ($errors), 406);
     $this->debugLog ("End of checkValues (",$update,") : Nothing in error");
   }
   /* }}} */
@@ -3142,12 +3142,13 @@ class dblayeroo
 
   /** Error management
     * @param string $message The message to throw in the exception
+    * @param integer|null $code The error code to return to the user
     */
-  public function DBException ($message)
+  public function DBException ($message, $code = 500)
   /* {{{ */
   {
     $message = $this->DBExceptionMsg ($message);
-    throw new \Exception ($message, 500);
+    throw new \Exception ($message, $code);
   }
   /* }}} */
 
@@ -3175,8 +3176,8 @@ class dblayeroo
     }
     return $message;
   }
-
   /* }}} */
+
   /** Debug function
     * @param mixed ...$message The message to display in debug
     */