diff --git a/include/lib/database_core.class.php b/include/lib/database_core.class.php
index 6cd6f30f2..98fa145af 100644
--- a/include/lib/database_core.class.php
+++ b/include/lib/database_core.class.php
@@ -35,7 +35,7 @@ require_once NOALYSS_INCLUDE . '/lib/ac_common.php';
 class DatabaseCore
 {
 
-    private $db;
+    protected $db;
     /**< database connection */
     private $ret;
     /**< return value  */
diff --git a/include/lib/http_input.class.php b/include/lib/http_input.class.php
index 894095439..5dd16a636 100644
--- a/include/lib/http_input.class.php
+++ b/include/lib/http_input.class.php
@@ -187,9 +187,9 @@ class HttpInput
 
     /**
      * @brief Retrieve from $_GET
-     * @param $p_name name of the variable
-     * @param $p_type type of the variable , opt. default string
-     * @param $p_default default value is variable is not set
+     * @param $p_name string of the variable
+     * @param $p_type string of the variable , opt. default string
+     * @param $p_default mixed default value is variable is not set
      * @throws Exception if invalid
      */
     function get($p_name, $p_type="string", $p_default="")