diff --git a/lib/std/c/freebsd.zig b/lib/std/c/freebsd.zig
index ce694aa1db..3b93ccc0c0 100644
--- a/lib/std/c/freebsd.zig
+++ b/lib/std/c/freebsd.zig
@@ -64,6 +64,8 @@ pub extern "c" fn getpid() pid_t;
 pub extern "c" fn kinfo_getfile(pid: pid_t, cntp: *c_int) ?[*]kinfo_file;
 pub extern "c" fn kinfo_getvmmap(pid: pid_t, cntp: *c_int) ?[*]kinfo_vmentry;
 pub extern "c" fn kinfo_getproc(pid: pid_t) ?[*]kinfo_proc;
+pub extern "c" fn kinfo_getvmobject(cntp: *c_int) ?[*]kinfo_vmobject;
+pub extern "c" fn kinfo_getswapvmobject(cntp: *c_int) ?[*]kinfo_vmobject;
 
 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;
@@ -861,6 +863,29 @@ comptime {
     assert(@sizeOf(kinfo_proc) == KINFO_PROC_SIZE);
 }
 
+pub const kinfo_vmobject = extern struct {
+    structsize: c_int,
+    tpe: c_int,
+    size: u64,
+    vn_fileid: u64,
+    vn_fsid_freebsd11: u32,
+    ref_count: c_int,
+    shadow_count: c_int,
+    memattr: c_int,
+    resident: u64,
+    active: u64,
+    inactive: u64,
+    type_spec: extern union {
+        _vn_fsid: u64,
+        _backing_obj: u64,
+    },
+    me: u64,
+    _qspare: [6]u64,
+    swapped: u32,
+    _ispare: [7]u32,
+    path: [PATH_MAX]u8,
+};
+
 pub const CTL = struct {
     pub const KERN = 1;
     pub const DEBUG = 5;