diff --git a/fs/closed_conn_win.go b/fs/closed_conn_win.go
index 6c843aace..488d22f7a 100644
--- a/fs/closed_conn_win.go
+++ b/fs/closed_conn_win.go
@@ -13,8 +13,8 @@ import (
 //
 // Code adapted from net/http
 func isClosedConnErrorPlatform(err error) bool {
-	if oe, ok := err.(*net.OpError); ok && oe.Op == "read" {
-		if se, ok := oe.Err.(*os.SyscallError); ok && se.Syscall == "wsarecv" {
+	if oe, ok := err.(*net.OpError); ok {
+		if se, ok := oe.Err.(*os.SyscallError); ok {
 			if errno, ok := se.Err.(syscall.Errno); ok {
 				const WSAECONNABORTED syscall.Errno = 10053
 				if errno == syscall.WSAECONNRESET || errno == WSAECONNABORTED {