diff --git a/src/RequestHeaders.php b/src/RequestHeaders.php
index 9d8ff26..2fc100a 100644
--- a/src/RequestHeaders.php
+++ b/src/RequestHeaders.php
@@ -26,7 +26,8 @@ public function __construct(
      * @return string|null The header value as a string, or null if the header is not present.
      */
     public function getHeaderLine(string $name, string|null $default = null): string|null {
-        return $this->requestProvider->get()->hasHeader($name) ? $this->requestProvider->get()->getHeaderLine($name) : $default;
+        $request = $this->requestProvider->get();
+        return $request->hasHeader($name) ? $request->getHeaderLine($name) : $default;
     }
 
     /**