diff --git a/unix/asm_bsd_386.s b/unix/asm_bsd_386.s
index 7f29275..e0fcd9b 100644
--- a/unix/asm_bsd_386.s
+++ b/unix/asm_bsd_386.s
@@ -2,8 +2,8 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-//go:build (darwin || freebsd || netbsd || openbsd) && gc
-// +build darwin freebsd netbsd openbsd
+//go:build (freebsd || netbsd || openbsd) && gc
+// +build freebsd netbsd openbsd
 // +build gc
 
 #include "textflag.h"
diff --git a/unix/asm_bsd_arm.s b/unix/asm_bsd_arm.s
index 98ebfad..d702d4a 100644
--- a/unix/asm_bsd_arm.s
+++ b/unix/asm_bsd_arm.s
@@ -2,8 +2,8 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-//go:build (darwin || freebsd || netbsd || openbsd) && gc
-// +build darwin freebsd netbsd openbsd
+//go:build (freebsd || netbsd || openbsd) && gc
+// +build freebsd netbsd openbsd
 // +build gc
 
 #include "textflag.h"