diff --git a/src/ControllerInterpreter.php b/src/ControllerInterpreter.php
index 8908754..cbbf227 100644
--- a/src/ControllerInterpreter.php
+++ b/src/ControllerInterpreter.php
@@ -81,7 +81,8 @@ class ControllerInterpreter
 			$reflectionMethod = $reflectionClass->getMethod($reflectionMethod);
 		}
 
-		if ($reflectionMethod->getReturnType()->getName() !== 'Psr\Http\Message\ResponseInterface') {
+		$returnType = $reflectionMethod->getReturnType();
+		if (method_exists($returnType, 'getName') && $returnType->getName() !== 'Psr\Http\Message\ResponseInterface') {
 			die('Request Handler<' . $class::class . '::' . $reflectionMethod->getName() . '> returns must implements on Psr\Http\Message\ResponseInterface');
 		}