diff --git a/lib/std/c/darwin.zig b/lib/std/c/darwin.zig
index a3482c73f6ae..cc7e6d0463b2 100644
--- a/lib/std/c/darwin.zig
+++ b/lib/std/c/darwin.zig
@@ -23,7 +23,7 @@ pub const COPYFILE_STAT = 1 << 1;
 pub const COPYFILE_XATTR = 1 << 2;
 pub const COPYFILE_DATA = 1 << 3;
 
-pub const copyfile_state_t = *@Type(.Opaque);
+pub const copyfile_state_t = *opaque {};
 pub extern "c" fn fcopyfile(from: fd_t, to: fd_t, state: ?copyfile_state_t, flags: u32) c_int;
 
 pub extern "c" fn @"realpath$DARWIN_EXTSN"(noalias file_name: [*:0]const u8, noalias resolved_name: [*]u8) ?[*:0]u8;