diff --git a/core/class/helper.class.php b/core/class/helper.class.php
index b3381e8c..dd743f11 100755
--- a/core/class/helper.class.php
+++ b/core/class/helper.class.php
@@ -108,7 +108,7 @@ class helper {
 		// Creation du ZIP
 		$baseName = str_replace('/','',helper::baseUrl(false,false));
 		$baseName = empty($baseName) ? 'ZwiiCMS' : $baseName;
-		$fileName =  $baseName . '-backup-' . date('Y-m-d-h-i-s', time()) . '.zip';
+		$fileName =  $baseName . '-backup-' . date('Y-m-d-H-i-s', time()) . '.zip';
 		$zip = new ZipArchive();
 		$zip->open($folder . $fileName, ZipArchive::CREATE | ZipArchive::OVERWRITE);
 		$directory = 'site/';
diff --git a/core/module/theme/theme.php b/core/module/theme/theme.php
index 8cb8b382..8d0d1817 100755
--- a/core/module/theme/theme.php
+++ b/core/module/theme/theme.php
@@ -774,7 +774,7 @@ class theme extends common {
 	 */
 	private function zipTheme($modele) {
 		// Creation du dossier
-		$zipFilename  =  $modele . ' ' .date('d m Y').'  '.date('H i s ').'.zip';
+		$zipFilename  =  $modele . date('Y-m-d-H-i-s', time()) . '.zip';
 		$zip = new ZipArchive();
 		if ($zip->open(self::TEMP_DIR . $zipFilename, ZipArchive::CREATE | ZipArchive::OVERWRITE ) === TRUE) {
 			switch ($modele) {