diff --git a/gtkcalls_unix.go b/gtkcalls_unix.go
index 75e9ede..819f5d8 100644
--- a/gtkcalls_unix.go
+++ b/gtkcalls_unix.go
@@ -1,5 +1,5 @@
 // +build !windows,!darwin,!plan9
-// this is manual but it really seems like the only way to do it for now; TODO file a feature request for a 'unix' or 'posix' build metatag?
+// this is manual but either this or the opposite (listing all valid systems) really are the only ways to do it; proposals for a 'unix' tag were rejected (https://code.google.com/p/go/issues/detail?id=6325)
 
 // 16 february 2014