diff --git a/htdocs/holiday/define_holiday.php b/htdocs/holiday/define_holiday.php
index 2b66b8d1567..a37207eddaa 100644
--- a/htdocs/holiday/define_holiday.php
+++ b/htdocs/holiday/define_holiday.php
@@ -24,7 +24,7 @@
  *		\brief      File that defines the balance of paid holiday of users.
  */
 
-require 'common.inc.php';
+include 'common.inc.php';
 require_once DOL_DOCUMENT_ROOT. '/user/class/user.class.php';
 
 // Protection if external user
diff --git a/htdocs/holiday/fiche.php b/htdocs/holiday/fiche.php
index 2110f51a323..6f32fff0b15 100644
--- a/htdocs/holiday/fiche.php
+++ b/htdocs/holiday/fiche.php
@@ -22,7 +22,7 @@
  *		\brief      Form and file creation of paid holiday.
  */
 
-require 'common.inc.php';
+include 'common.inc.php';
 require_once DOL_DOCUMENT_ROOT. '/core/class/html.form.class.php';
 require_once DOL_DOCUMENT_ROOT. '/user/class/usergroup.class.php';
 require_once DOL_DOCUMENT_ROOT. '/core/class/html.formfile.class.php';
diff --git a/htdocs/holiday/index.php b/htdocs/holiday/index.php
index 171e0421b1a..61a6e4318df 100644
--- a/htdocs/holiday/index.php
+++ b/htdocs/holiday/index.php
@@ -23,7 +23,7 @@
  *		\brief      List of holiday.
  */
 
-require 'common.inc.php';
+include 'common.inc.php';
 require_once DOL_DOCUMENT_ROOT. '/core/class/html.form.class.php';
 require_once DOL_DOCUMENT_ROOT. '/core/class/html.formother.class.php';
 require_once DOL_DOCUMENT_ROOT. '/user/class/user.class.php';
diff --git a/htdocs/holiday/month_report.php b/htdocs/holiday/month_report.php
index aca1913e1d9..36a3212c0d1 100644
--- a/htdocs/holiday/month_report.php
+++ b/htdocs/holiday/month_report.php
@@ -22,7 +22,7 @@
  *		\brief      Monthly report of paid holiday.
  */
 
-require 'common.inc.php';
+include 'common.inc.php';
 require_once DOL_DOCUMENT_ROOT.'/user/class/user.class.php';
 require_once DOL_DOCUMENT_ROOT.'/core/class/html.form.class.php';
 require_once DOL_DOCUMENT_ROOT.'/core/class/html.formother.class.php';
diff --git a/htdocs/holiday/view_log.php b/htdocs/holiday/view_log.php
index 5d22451f52c..ffe000bf04d 100644
--- a/htdocs/holiday/view_log.php
+++ b/htdocs/holiday/view_log.php
@@ -23,7 +23,7 @@
  *  \ingroup    holiday
  */
 
-require 'common.inc.php';
+include 'common.inc.php';
 require_once DOL_DOCUMENT_ROOT. '/user/class/user.class.php';
 
 // Protection if external user