diff --git a/src/ObjectReflection.php b/src/ObjectReflection.php
index 661a0ff..aa72ef9 100644
--- a/src/ObjectReflection.php
+++ b/src/ObjectReflection.php
@@ -167,7 +167,7 @@ class ObjectReflection {
 
             $current = [
                 'name' => $method->getName(),
-                'type' => $method->hasReturnType() ? $method->getReturnType()->getName() : false,
+                'type' => $method->hasReturnType() && $method->getReturnType() instanceof \ReflectionNamedType ? $method->getReturnType()->getName() : false,
                 'constructor' => $method->isConstructor(),
                 'destructor' => $method->isDestructor(),
                 'parameters' => $parameters,