diff --git a/vendor/golang.org/x/sys/unix/sockcmsg_unix_other.go b/vendor/golang.org/x/sys/unix/sockcmsg_unix_other.go
index 7d08dae..57a0021 100644
--- a/vendor/golang.org/x/sys/unix/sockcmsg_unix_other.go
+++ b/vendor/golang.org/x/sys/unix/sockcmsg_unix_other.go
@@ -20,7 +20,7 @@
 	case "aix":
 		// There is no alignment on AIX.
 		salign = 1
-	case "darwin", "illumos", "solaris":
+	case "darwin", "ios", "illumos", "solaris":
 		// NOTE: It seems like 64-bit Darwin, Illumos and Solaris
 		// kernels still require 32-bit aligned access to network
 		// subsystem.
@@ -32,6 +32,10 @@
 		if runtime.GOARCH == "arm" {
 			salign = 8
 		}
+		// NetBSD aarch64 requires 128-bit alignment.
+		if runtime.GOOS == "netbsd" && runtime.GOARCH == "arm64" {
+			salign = 16
+		}
 	}
 
 	return (salen + salign - 1) & ^(salign - 1)