diff --git a/src/SiteInterface.php b/src/SiteInterface.php
index 0c696a1..fafeb5f 100644
--- a/src/SiteInterface.php
+++ b/src/SiteInterface.php
@@ -36,5 +36,5 @@ public function publicContent(Path $at): PublicContent;
     /**
      * @return string[]
      */
-    public function titles(Path $at): array
+    public function titles(Path $at): array;
 }