diff --git a/src/unix/notbsd/linux/s390x.rs b/src/unix/notbsd/linux/s390x.rs
index fd68c88934b9e..f59b2d807efc9 100644
--- a/src/unix/notbsd/linux/s390x.rs
+++ b/src/unix/notbsd/linux/s390x.rs
@@ -509,6 +509,7 @@ pub const SO_RCVLOWAT: ::c_int = 18;
 pub const SO_SNDLOWAT: ::c_int = 19;
 pub const SO_ACCEPTCONN: ::c_int = 30;
 pub const SO_SNDBUFFORCE: ::c_int = 32;
+pub const SO_RCVBUFFORCE: ::c_int = 33;
 
 pub const TCP_COOKIE_TRANSACTIONS: ::c_int = 15;
 pub const TCP_THIN_LINEAR_TIMEOUTS: ::c_int = 16;