diff --git a/test/hato/middleware_test.clj b/test/hato/middleware_test.clj
index e372167..72d7195 100644
--- a/test/hato/middleware_test.clj
+++ b/test/hato/middleware_test.clj
@@ -367,7 +367,6 @@
 
   (testing "with multipart option"
     (let [r ((wrap-multipart identity) {:multipart [{:name "title" :content "My Awesome Picture"}]})]
-      (is (instance? InputStream (:body r)))
       (is (re-matches #"^multipart/form-data; boundary=[a-zA-Z0-9_]+$" (-> r :headers (get "content-type"))))
       (is (nil? (:multipart r))))))