diff --git a/src/Domain/Insights/SniffDecorator.php b/src/Domain/Insights/SniffDecorator.php
index 0ae0ec1c..bfa99210 100644
--- a/src/Domain/Insights/SniffDecorator.php
+++ b/src/Domain/Insights/SniffDecorator.php
@@ -50,7 +50,7 @@ public function __construct(Sniff $sniff, string $dir, array $exclude)
     }
 
     /**
-     * @return array<string>
+     * @return array<int|string>
      */
     public function register(): array
     {