--- a/src/unix/linux_like/linux/musl/b64/s390x.rs
+++ b/src/unix/linux_like/linux/musl/b64/s390x.rs
@@ -146,6 +146,7 @@
 pub const O_CREAT: ::c_int = 64;
 pub const O_EXCL: ::c_int = 128;
 pub const O_NONBLOCK: ::c_int = 2048;
+pub const O_LARGEFILE: ::c_int = 0x8000;
 pub const SA_NOCLDWAIT: ::c_int = 2;
 pub const SA_ONSTACK: ::c_int = 0x08000000;
 pub const SA_SIGINFO: ::c_int = 4;