diff --git a/lib/std/c/freebsd.zig b/lib/std/c/freebsd.zig
index fde54467d0da13d733f15fb1b48615f375b26936..ae4631c7e085828e90fcbb190d26430fdf7ca48e 100644
--- a/lib/std/c/freebsd.zig
+++ b/lib/std/c/freebsd.zig
@@ -1105,11 +1105,6 @@ pub const DT = struct {
     pub const WHT = 14;
 };
 
-pub const accept_filter = extern struct {
-    af_name: [16]u8,
-    af_args: [240]u8,
-};
-
 /// add event to kq (implies enable)
 pub const EV_ADD = 0x0001;