diff --git a/lib/std/c/freebsd.zig b/lib/std/c/freebsd.zig
index 037ba989ca..af9f6b023b 100644
--- a/lib/std/c/freebsd.zig
+++ b/lib/std/c/freebsd.zig
@@ -53,6 +53,9 @@ pub extern "c" fn kinfo_getvmmap(pid: pid_t, cntp: *c_int) ?[*]kinfo_vmentry;
 
 pub extern "c" fn cpuset_getaffinity(level: cpulevel_t, which: cpuwhich_t, id: id_t, setsize: usize, mask: *cpuset_t) c_int;
 pub extern "c" fn cpuset_setaffinity(level: cpulevel_t, which: cpuwhich_t, id: id_t, setsize: usize, mask: *const cpuset_t) c_int;
+pub extern "c" fn sched_getaffinity(pid: pid_t, cpusetsz: usize, cpuset: *cpuset_t) c_int;
+pub extern "c" fn sched_setaffinity(pid: pid_t, cpusetsz: usize, cpuset: *const cpuset_t) c_int;
+pub extern "c" fn sched_getcpu() c_int;
 
 pub const sf_hdtr = extern struct {
     headers: [*]const iovec_const,