2 files changed, 3 insertions, 3 deletions
diff --git a/std/mime/multipart.ts b/std/mime/multipart.ts
index c46948226..709752290 100644
--- a/std/mime/multipart.ts
+++ b/std/mime/multipart.ts
@@ -308,7 +308,7 @@ export class MultipartReader {
       }
       // file
       let formFile: FormFile | undefined;
-      const n = await copy(buf, p);
+      const n = await copy(p, buf);
       const contentType = p.headers.get("content-type");
       assert(contentType != null, "content-type must be set");
       if (n > maxMemory) {
@@ -573,7 +573,7 @@ export class MultipartWriter {
     file: Reader
   ): Promise<void> {
     const f = await this.createFormFile(field, filename);
-    await copy(f, file);
+    await copy(file, f);
   }
 
   private flush(): Promise<void> {
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();