1 files changed, 1 insertions, 1 deletions
diff --git a/std/mime/multipart_test.ts b/std/mime/multipart_test.ts
index 8b721a441..aa3b7524e 100644
--- a/std/mime/multipart_test.ts
+++ b/std/mime/multipart_test.ts
@@ -208,7 +208,7 @@ test({
       assert(file.tempfile != null);
       const f = await open(file.tempfile);
       const w = new StringWriter();
-      await copy(w, f);
+      await copy(f, w);
       const json = JSON.parse(w.toString());
       assertEquals(json["compilerOptions"]["target"], "es2018");
       f.close();