diff --git a/src/Settings.php b/src/Settings.php
index 0179399..830ad22 100644
--- a/src/Settings.php
+++ b/src/Settings.php
@@ -7,8 +7,10 @@ class Settings
 {
     public function getTwigSettings(): array
     {
+        $cacheDir = getenv('TWIG_CACHE_DIR');
+
         return [
-            'cache' => getenv('TWIG_CACHE_DIR') ?? false,
+            'cache' => !empty($cacheDir) ? $cacheDir : false,
         ];
     }
 }