diff --git a/lib/std/os/linux/bpf/kern.zig b/lib/std/os/linux/bpf/kern.zig
index 0b54b938e9..3bd605301a 100644
--- a/lib/std/os/linux/bpf/kern.zig
+++ b/lib/std/os/linux/bpf/kern.zig
@@ -12,29 +12,28 @@ const in_bpf_program = switch (std.builtin.arch) {
 
 pub const helpers = if (in_bpf_program) @import("helpers.zig") else struct {};
 
-// TODO: fill these in
-pub const BpfSock = packed struct {};
-pub const BpfSockAddr = packed struct {};
-pub const FibLookup = packed struct {};
-pub const MapDef = packed struct {};
-pub const PerfEventData = packed struct {};
-pub const PerfEventValue = packed struct {};
-pub const PidNsInfo = packed struct {};
-pub const SeqFile = packed struct {};
-pub const SkBuff = packed struct {};
-pub const SkMsgMd = packed struct {};
-pub const SkReusePortMd = packed struct {};
-pub const Sock = packed struct {};
-pub const SockAddr = packed struct {};
-pub const SockOps = packed struct {};
-pub const SockTuple = packed struct {};
-pub const SpinLock = packed struct {};
-pub const SysCtl = packed struct {};
-pub const Tcp6Sock = packed struct {};
-pub const TcpRequestSock = packed struct {};
-pub const TcpSock = packed struct {};
-pub const TcpTimewaitSock = packed struct {};
-pub const TunnelKey = packed struct {};
-pub const Udp6Sock = packed struct {};
-pub const XdpMd = packed struct {};
-pub const XfrmState = packed struct {};
+pub const BpfSock = @Type(.Opaque);
+pub const BpfSockAddr = @Type(.Opaque);
+pub const FibLookup = @Type(.Opaque);
+pub const MapDef = @Type(.Opaque);
+pub const PerfEventData = @Type(.Opaque);
+pub const PerfEventValue = @Type(.Opaque);
+pub const PidNsInfo = @Type(.Opaque);
+pub const SeqFile = @Type(.Opaque);
+pub const SkBuff = @Type(.Opaque);
+pub const SkMsgMd = @Type(.Opaque);
+pub const SkReusePortMd = @Type(.Opaque);
+pub const Sock = @Type(.Opaque);
+pub const SockAddr = @Type(.Opaque);
+pub const SockOps = @Type(.Opaque);
+pub const SockTuple = @Type(.Opaque);
+pub const SpinLock = @Type(.Opaque);
+pub const SysCtl = @Type(.Opaque);
+pub const Tcp6Sock = @Type(.Opaque);
+pub const TcpRequestSock = @Type(.Opaque);
+pub const TcpSock = @Type(.Opaque);
+pub const TcpTimewaitSock = @Type(.Opaque);
+pub const TunnelKey = @Type(.Opaque);
+pub const Udp6Sock = @Type(.Opaque);
+pub const XdpMd = @Type(.Opaque);
+pub const XfrmState = @Type(.Opaque);