diff --git a/config/routes.php b/config/routes.php
index db29a93..e38fa04 100644
--- a/config/routes.php
+++ b/config/routes.php
@@ -29,4 +29,4 @@
 $app->get('/', App\Action\HomePageAction::class, 'home');
 $app->get('/api/galleries', App\Action\ListGalleriesAction::class, 'api.galleries');
 $app->get('/api/gallery/{slug}', App\Action\GetGalleryImagesAction::class, 'api.gallery');
-$app->get('/api/image/{slug}/{image}[/thumb]', App\Action\GetImageAction::class, 'api.image');
+$app->get('/api/image/{slug}/{image}[/{thumb}]', App\Action\GetImageAction::class, 'api.image');
diff --git a/src/App/Service/GalleryService.php b/src/App/Service/GalleryService.php
index 3bd397f..489fef0 100644
--- a/src/App/Service/GalleryService.php
+++ b/src/App/Service/GalleryService.php
@@ -61,18 +61,18 @@ class GalleryService
         ];
     }
 
-    public function getImage(string $slug, string $image, bool $size)
+    public function getImage(string $slug, string $image, $size = false): string
     {
         $config        = $this->getConfig();
         $galleryDir    = sprintf(self::IMAGE_BASEDIR, $config['galleries'][$slug]['dir']);
         $imageFileName = $size
-            ? $galleryDir . $image
-            : $this->getResizedImageName($galleryDir, $image, $size);
+            ? $this->getResizedImageName($galleryDir, $image, $size)
+            : ( $galleryDir . $image );
 
         return $imageFileName;
     }
 
-    protected function getResizedImageName($galleryDirectory, $imageName, $size)
+    protected function getResizedImageName($galleryDirectory, $imageName, $size): string
     {
         $numericSize = $size == 'thumb' ? self::THUMBNAIL_SIZE : $size;