diff --git a/src/Framework/MockObject/Generator.php b/src/Framework/MockObject/Generator.php
index 3df3abb..8407182 100644
--- a/src/Framework/MockObject/Generator.php
+++ b/src/Framework/MockObject/Generator.php
@@ -1032,7 +1032,8 @@ protected function getMethodParameters(ReflectionMethod $method, $forCall = fals
 
             if (!$forCall) {
                 if ($this->hasType($parameter)) {
-                    $typeDeclaration = (string) $parameter->getType() . ' ';
+                    $type = $parameter->getType();
+                    $typeDeclaration = (PHP_VERSION_ID >= 70100 ? $type->getName() : (string) $type) . ' ';
                 } elseif ($parameter->isArray()) {
                     $typeDeclaration = 'array ';
                 } elseif ((defined('HHVM_VERSION') || version_compare(PHP_VERSION, '5.4.0', '>='))