diff --git a/composer.json b/composer.json
index 2b9057d..ca54697 100644
--- a/composer.json
+++ b/composer.json
@@ -1,7 +1,7 @@
 {
     "name": "kiwilan/php-ebook",
     "description": "PHP package to read metadata and extract covers from eBooks (.epub, .cbz, .cbr, .cb7, .cbt, .pdf) and audiobooks (.mp3, .m4a, .m4b, .flac, .ogg).",
-    "version": "1.3.33",
+    "version": "1.3.34",
     "keywords": [
         "php",
         "ebook",
diff --git a/src/Tools/MetaTitle.php b/src/Tools/MetaTitle.php
index 83dda36..3ff5571 100644
--- a/src/Tools/MetaTitle.php
+++ b/src/Tools/MetaTitle.php
@@ -211,8 +211,8 @@ private function generateSlug(string $title, ?string $type, ?string $language):
      */
     private function generateUniqueFilename(Ebook $ebook): string
     {
-        $author = $this->setSlug($ebook->authorMain());
-        $filename = "{$author}";
+        $language = $this->setSlug($ebook->language());
+        $filename = "{$language}";
         if ($ebook->series()) {
             $series = $this->setSlug($ebook->series());
             $filename .= "-{$series}";
@@ -224,8 +224,8 @@ private function generateUniqueFilename(Ebook $ebook): string
         }
         $title = $this->setSlug($ebook->title());
         $filename .= "-{$title}";
-        $language = $this->setSlug($ebook->language());
-        $filename .= "-{$language}";
+        $author = $this->setSlug($ebook->authorMain());
+        $filename .= "-{$author}";
         $format = $this->setSlug($ebook->extension());
         $filename .= "-{$format}";
 
diff --git a/tests/MetaTitleTest.php b/tests/MetaTitleTest.php
index cebc50a..6a6e663 100644
--- a/tests/MetaTitleTest.php
+++ b/tests/MetaTitleTest.php
@@ -19,5 +19,5 @@
     expect($meta->serieSlugSort())->toBe('a-comme-association');
     expect($meta->serieSlugLang())->toBe('a-comme-association-epub-fr');
     expect($meta->slugSortWithSerie())->toBe('a-comme-association-01_pale-lumiere-des-tenebres');
-    expect($meta->uniqueFilename())->toBe('jean-m-auel-a-comme-association-01-la-pale-lumiere-des-tenebres-fr-epub');
+    expect($meta->uniqueFilename())->toBe('fr-a-comme-association-01-la-pale-lumiere-des-tenebres-jean-m-auel-epub');
 });