diff --git a/htdocs/core/class/html.formticket.class.php b/htdocs/core/class/html.formticket.class.php
index 5cad99b2a9f..7ed11bb81e8 100644
--- a/htdocs/core/class/html.formticket.class.php
+++ b/htdocs/core/class/html.formticket.class.php
@@ -727,8 +727,8 @@ class FormTicket
     {
         global $conf, $langs, $user, $mysoc;
 
-        $langs->load("other");
-        $langs->load("mails");
+        // Load translation files required by the page
+        $langs->loadLangs(array('other', 'mails'));
 
         $addfileaction = 'addfile';
 
diff --git a/htdocs/core/lib/files.lib.php b/htdocs/core/lib/files.lib.php
index 432c857850b..4df32ca4a35 100644
--- a/htdocs/core/lib/files.lib.php
+++ b/htdocs/core/lib/files.lib.php
@@ -1141,8 +1141,8 @@ function dol_delete_file($file,$disableglob=0,$nophperrors=0,$nohook=0,$object=n
 	global $db, $conf, $user, $langs;
 	global $hookmanager;
 
-	$langs->load("other");
-	$langs->load("errors");
+	// Load translation files required by the page
+    $langs->loadLangs(array('other', 'errors'));
 
 	dol_syslog("dol_delete_file file=".$file." disableglob=".$disableglob." nophperrors=".$nophperrors." nohook=".$nohook);
 
diff --git a/htdocs/core/lib/functions.lib.php b/htdocs/core/lib/functions.lib.php
index a73a107c0dc..e648a89f6ed 100644
--- a/htdocs/core/lib/functions.lib.php
+++ b/htdocs/core/lib/functions.lib.php
@@ -3865,8 +3865,8 @@ function dol_print_error($db='',$error='',$errors=null)
 		$langs = new Translate('', $conf);
 		$langs->load("main");
 	}
-	$langs->load("main");
-	$langs->load("errors");
+	// Load translation files required by the page
+    $langs->loadLangs(array('main', 'errors'));
 
 	if ($_SERVER['DOCUMENT_ROOT'])    // Mode web
 	{
diff --git a/htdocs/core/lib/security2.lib.php b/htdocs/core/lib/security2.lib.php
index 8c8bb3cbb10..c9f4ece6445 100644
--- a/htdocs/core/lib/security2.lib.php
+++ b/htdocs/core/lib/security2.lib.php
@@ -105,9 +105,9 @@ function checkLoginPassEntity($usertotest,$passwordtotest,$entitytotest,$authmod
     			{
     				dol_syslog("Authentification ko - failed to load file '".$authfile."'", LOG_ERR);
     				sleep(1);
-    				$langs->load('main');
-    				$langs->load('other');
-    				$langs->load('errors');
+    				// Load translation files required by the page
+                    $langs->loadLangs(array('other', 'main', 'errors'));
+
     				$_SESSION["dol_loginmesg"]=$langs->trans("ErrorFailedToLoadLoginFileForMode", $mode);
     			}
     		}