diff --git a/src/internal/poll/fd_windows.go b/src/internal/poll/fd_windows.go
index 1114d66a7a..309f0291a1 100644
--- a/src/internal/poll/fd_windows.go
+++ b/src/internal/poll/fd_windows.go
@@ -226,7 +226,7 @@ func (s *ioSrv) ExecIO(o *operation, submit func(o *operation) error) (int, erro
 		if o.errno != 0 {
 			err = syscall.Errno(o.errno)
 			// More data available. Return back the size of received data.
-			if err == syscall.ERROR_MORE_DATA || err == syscall.WSAEMSGSIZE {
+			if err == syscall.ERROR_MORE_DATA || err == windows.WSAEMSGSIZE {
 				return int(o.qty), err
 			}
 			return 0, err
diff --git a/src/syscall/types_windows.go b/src/syscall/types_windows.go
index 59bfe5d642..bc9bd4dbd8 100644
--- a/src/syscall/types_windows.go
+++ b/src/syscall/types_windows.go
@@ -27,7 +27,6 @@ const (
 	ERROR_NOT_FOUND           Errno = 1168
 	ERROR_PRIVILEGE_NOT_HELD  Errno = 1314
 	WSAEACCES                 Errno = 10013
-	WSAEMSGSIZE               Errno = 10040
 	WSAECONNABORTED           Errno = 10053
 	WSAECONNRESET             Errno = 10054
 )