diff --git a/src/TestSuite/IntegrationTestTrait.php b/src/TestSuite/IntegrationTestTrait.php
index 19d2a134fbb..3ee52b14e0c 100644
--- a/src/TestSuite/IntegrationTestTrait.php
+++ b/src/TestSuite/IntegrationTestTrait.php
@@ -621,7 +621,8 @@ protected function _buildRequest($url, $method, $data)
         $props = [
             'url' => $url,
             'session' => $session,
-            'query' => $queryData
+            'query' => $queryData,
+            'files' => [],
         ];
         if (is_string($data)) {
             $props['input'] = $data;
diff --git a/src/TestSuite/MiddlewareDispatcher.php b/src/TestSuite/MiddlewareDispatcher.php
index d1c44a24915..3f73202e1ed 100644
--- a/src/TestSuite/MiddlewareDispatcher.php
+++ b/src/TestSuite/MiddlewareDispatcher.php
@@ -153,7 +153,8 @@ protected function _createRequest($spec)
             $environment,
             $spec['query'],
             $spec['post'],
-            $spec['cookies']
+            $spec['cookies'],
+            $spec['files']
         );
         $request = $request->withAttribute('session', $spec['session']);