diff --git a/arch/s390x/bits/syscall.h.in b/arch/s390x/bits/syscall.h.in
index bb1c0f4d4340652cd8597b83a1d227001ad7917c..4fe1a64f2ab84476482356f0723b4ecb255126c0 100644
--- a/arch/s390x/bits/syscall.h.in
+++ b/arch/s390x/bits/syscall.h.in
@@ -320,5 +320,6 @@
 #define __NR_copy_file_range            375
 #define __NR_preadv2                    376
 #define __NR_pwritev2                   377
+#define __NR_s390_guarded_storage       378
 #define __NR_statx                      379