diff --git a/std/c/freebsd.zig b/std/c/freebsd.zig
index 4d5c3810e8..2f2f4c0a1b 100644
--- a/std/c/freebsd.zig
+++ b/std/c/freebsd.zig
@@ -93,3 +93,28 @@ pub const dirent = extern struct {
     d_pad1: u16,
     d_name: [256]u8,
 };
+
+pub const in_port_t = u16;
+pub const sa_family_t = u16;
+
+pub const sockaddr = extern union {
+    in: sockaddr_in,
+    in6: sockaddr_in6,
+};
+
+pub const sockaddr_in = extern struct {
+    len: u8,
+    family: sa_family_t,
+    port: in_port_t,
+    addr: [16]u8,
+    zero: [8]u8,
+};
+
+pub const sockaddr_in6 = extern struct {
+    len: u8,
+    family: sa_family_t,
+    port: in_port_t,
+    flowinfo: u32,
+    addr: [16]u8,
+    scope_id: u32,
+};
diff --git a/std/os/freebsd/index.zig b/std/os/freebsd/index.zig
index 9bb683f69e..c333ef2ac4 100644
--- a/std/os/freebsd/index.zig
+++ b/std/os/freebsd/index.zig
@@ -525,6 +525,10 @@ pub const TIOCGPKT = 0x80045438;
 pub const TIOCGPTLCK = 0x80045439;
 pub const TIOCGEXCL = 0x80045440;
 
+pub const sockaddr = c.sockaddr;
+pub const sockaddr_in = c.sockaddr_in;
+pub const sockaddr_in6 = c.sockaddr_in6;
+
 fn unsigned(s: i32) u32 {
     return @bitCast(u32, s);
 }