diff --git a/zsyscall_freebsd.go b/zsyscall_freebsd.go
index 49cfac4..702fd99 100644
--- a/zsyscall_freebsd.go
+++ b/zsyscall_freebsd.go
@@ -5,7 +5,7 @@
 //
 
 // This file is machine generated by the command:
-//   mksyscall.pl serial_darwin.go
+//   mksyscall.pl serial_freebsd.go
 // The generated stub is modified to make it compile under the "serial" package
 
 package serial // import "go.bug.st/serial.v1"