diff --git a/htdocs/partnership/partnership_contact.php b/htdocs/partnership/partnership_contact.php
index 632047acf25..1c416cf690c 100644
--- a/htdocs/partnership/partnership_contact.php
+++ b/htdocs/partnership/partnership_contact.php
@@ -22,41 +22,14 @@
  *  \brief      Tab for contacts linked to Partnership
  */
 
+
 // Load Dolibarr environment
-$res = 0;
-// Try main.inc.php into web root known defined into CONTEXT_DOCUMENT_ROOT (not always defined)
-if (!$res && !empty($_SERVER["CONTEXT_DOCUMENT_ROOT"])) {
-	$res = @include $_SERVER["CONTEXT_DOCUMENT_ROOT"]."/main.inc.php";
-}
-// Try main.inc.php into web root detected using web root calculated from SCRIPT_FILENAME
-$tmp = empty($_SERVER['SCRIPT_FILENAME']) ? '' : $_SERVER['SCRIPT_FILENAME']; $tmp2 = realpath(__FILE__); $i = strlen($tmp) - 1; $j = strlen($tmp2) - 1;
-while ($i > 0 && $j > 0 && isset($tmp[$i]) && isset($tmp2[$j]) && $tmp[$i] == $tmp2[$j]) {
-	$i--; $j--;
-}
-if (!$res && $i > 0 && file_exists(substr($tmp, 0, ($i + 1))."/main.inc.php")) {
-	$res = @include substr($tmp, 0, ($i + 1))."/main.inc.php";
-}
-if (!$res && $i > 0 && file_exists(dirname(substr($tmp, 0, ($i + 1)))."/main.inc.php")) {
-	$res = @include dirname(substr($tmp, 0, ($i + 1)))."/main.inc.php";
-}
-// Try main.inc.php using relative path
-if (!$res && file_exists("../main.inc.php")) {
-	$res = @include "../main.inc.php";
-}
-if (!$res && file_exists("../../main.inc.php")) {
-	$res = @include "../../main.inc.php";
-}
-if (!$res && file_exists("../../../main.inc.php")) {
-	$res = @include "../../../main.inc.php";
-}
-if (!$res) {
-	die("Include of main fails");
-}
+require '../main.inc.php';
 
 require_once DOL_DOCUMENT_ROOT.'/contact/class/contact.class.php';
 require_once DOL_DOCUMENT_ROOT.'/core/class/html.formcompany.class.php';
-dol_include_once('/partnership/class/partnership.class.php');
-dol_include_once('/partnership/lib/partnership.lib.php');
+require_once DOL_DOCUMENT_ROOT.'/partnership/class/partnership.class.php';
+require_once DOL_DOCUMENT_ROOT.'/partnership/lib/partnership.lib.php';
 
 // Load translation files required by the page
 $langs->loadLangs(array("partnership", "companies", "other", "mails"));