diff --git a/src/syscall/rlimit_stub.go b/src/syscall/rlimit_stub.go
index e8f839dd99..7daa935dd5 100644
--- a/src/syscall/rlimit_stub.go
+++ b/src/syscall/rlimit_stub.go
@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-//go:build aix || dragonfly || freebsd || linux || netbsd || openbsd || solaris
+//go:build unix && !darwin
 
 package syscall
 
diff --git a/src/syscall/rlimit_test.go b/src/syscall/rlimit_test.go
index e48f45e3aa..764694fe2d 100644
--- a/src/syscall/rlimit_test.go
+++ b/src/syscall/rlimit_test.go
@@ -2,6 +2,8 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
+//go:build unix
+
 package syscall_test
 
 import (