diff --git a/src/mime/multipart/formdata_test.go b/src/mime/multipart/formdata_test.go
index bfa9f683825..8677633d801 100644
--- a/src/mime/multipart/formdata_test.go
+++ b/src/mime/multipart/formdata_test.go
@@ -159,7 +159,7 @@ Content-Disposition: form-data; name="texta"
 Content-Type: text/plain
 
 ` + textaValue + `
---MyBoundary
+--MyBoundary--
 `
 
 const message = `