diff --git a/src/internal/syscall/unix/getrandom_linux_s390x.go b/src/internal/syscall/unix/getrandom_linux_s390x.go
new file mode 100644
index 0000000000..e3bc4ee355
--- /dev/null
+++ b/src/internal/syscall/unix/getrandom_linux_s390x.go
@@ -0,0 +1,9 @@
+// Copyright 2016 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package unix
+
+// Linux getrandom system call number.
+// See GetRandom in getrandom_linux.go.
+const randomTrap uintptr = 349