diff --git a/src/Package.php b/src/Package.php
index 98f89f0..940c144 100644
--- a/src/Package.php
+++ b/src/Package.php
@@ -50,7 +50,7 @@ public function name(string $name): static
 
     public function hasConfigFile($configFileName = null): static
     {
-        $configFileName = $configFileName ?? $this->shortName();
+        $configFileName ??= $this->shortName();
 
         if (! is_array($configFileName)) {
             $configFileName = [$configFileName];