diff --git a/src/unix/notbsd/linux/s390x/mod.rs b/src/unix/notbsd/linux/s390x/mod.rs
index ebe9d41710e629d05f4ec71079d2a983d03ae63d..d4cf95678ed0a05adf5d6aa2b90f4c8f6e53398c 100644
--- a/src/unix/notbsd/linux/s390x/mod.rs
+++ b/src/unix/notbsd/linux/s390x/mod.rs
@@ -782,10 +782,6 @@ pub const PTRACE_POKEUSER: ::c_uint = 6;
 pub const PTRACE_CONT: ::c_uint = 7;
 pub const PTRACE_KILL: ::c_uint = 8;
 pub const PTRACE_SINGLESTEP: ::c_uint = 9;
-pub const PTRACE_GETREGS: ::c_uint = 12;
-pub const PTRACE_SETREGS: ::c_uint = 13;
-pub const PTRACE_GETFPREGS: ::c_uint = 14;
-pub const PTRACE_SETFPREGS: ::c_uint = 15;
 pub const PTRACE_ATTACH: ::c_uint = 16;
 pub const PTRACE_DETACH: ::c_uint = 17;
 pub const PTRACE_SYSCALL: ::c_uint = 24;