diff --git a/htdocs/admin/tools/export.php b/htdocs/admin/tools/export.php
index 0d8dc245e4d..f86968ddf95 100644
--- a/htdocs/admin/tools/export.php
+++ b/htdocs/admin/tools/export.php
@@ -61,12 +61,12 @@ $formfile = new FormFile($db);
 
 print_fiche_titre($langs->trans("Backup"),'','setup');
 
-/**
- * Increase time limit for script execution and initializes some variables
- */
-@set_time_limit($cfg['ExecTimeLimit']);
-if (!empty($cfg['MemoryLimit'])) {
-    @ini_set('memory_limit', $cfg['MemoryLimit']);
+// TODO Define ExecTimeLimit and MemoryLimit
+if (!empty($ExecTimeLimit)) {
+@set_time_limit($ExecTimeLimit);
+}
+if (!empty($MemoryLimit)) {
+@ini_set('memory_limit', $MemoryLimit);
 }
 
 // Start with empty buffer
diff --git a/htdocs/lib/antivir.class.php b/htdocs/lib/antivir.class.php
index 6a478f99090..6626c702422 100644
--- a/htdocs/lib/antivir.class.php
+++ b/htdocs/lib/antivir.class.php
@@ -60,7 +60,6 @@ class AntiVir
 
 		$return = 0;
 
-		@set_time_limit($cfg['ExecTimeLimit']);
 		$outputfile=$conf->admin->dir_temp.'/dol_avscan_file.out.'.session_id();
 
 		$fullcommand=$this->getCliCommand($file);