diff --git a/common/buf/readv_reader.go b/common/buf/readv_reader.go
index d2974187..3b008aae 100644
--- a/common/buf/readv_reader.go
+++ b/common/buf/readv_reader.go
@@ -1,4 +1,5 @@
 // +build !windows
+
 package buf
 
 import (
diff --git a/common/buf/readv_reader_windows.go b/common/buf/readv_reader_windows.go
index a55b6c75..45f437cb 100644
--- a/common/buf/readv_reader_windows.go
+++ b/common/buf/readv_reader_windows.go
@@ -1,4 +1,5 @@
 // +build windows
+
 package buf
 
 import (