diff --git a/lib/std/c/linux.zig b/lib/std/c/linux.zig
index 9fc547311f..db55b5d850 100644
--- a/lib/std/c/linux.zig
+++ b/lib/std/c/linux.zig
@@ -56,6 +56,7 @@ pub const STDOUT_FILENO = linux.STDOUT_FILENO;
 pub const SYS = linux.SYS;
 pub const Sigaction = linux.Sigaction;
 pub const TCP = linux.TCP;
+pub const TCSA = linux.TCSA;
 pub const VDSO = linux.VDSO;
 pub const W = linux.W;
 pub const W_OK = linux.W_OK;
@@ -91,6 +92,7 @@ pub const sigset_t = linux.sigset_t;
 pub const sockaddr = linux.sockaddr;
 pub const socklen_t = linux.socklen_t;
 pub const stack_t = linux.stack_t;
+pub const tcflag_t = linux.tcflag_t;
 pub const termios = linux.termios;
 pub const time_t = linux.time_t;
 pub const timespec = linux.timespec;
diff --git a/lib/std/os.zig b/lib/std/os.zig
index 03469cd47f..69883a1395 100644
--- a/lib/std/os.zig
+++ b/lib/std/os.zig
@@ -163,6 +163,7 @@ pub const sigset_t = system.sigset_t;
 pub const sockaddr = system.sockaddr;
 pub const socklen_t = system.socklen_t;
 pub const stack_t = system.stack_t;
+pub const tcflag_t = system.tcflag_t;
 pub const termios = system.termios;
 pub const time_t = system.time_t;
 pub const timespec = system.timespec;