diff --git a/lib/std/os.zig b/lib/std/os.zig
index 8c70b56b46..7ab421c793 100644
--- a/lib/std/os.zig
+++ b/lib/std/os.zig
@@ -5511,7 +5511,7 @@ pub fn dl_iterate_phdr(
             }
         }.callbackC, @as(?*anyopaque, @ptrFromInt(@intFromPtr(&context))))) {
             0 => return,
-            else => |err| return @as(Error, @errorCast(@errorFromInt(@as(u16, @intCast(err))))), // TODO don't hardcode u16
+            else => |err| return @as(Error, @errorCast(@errorFromInt(@as(std.meta.Int(.unsigned, @bitSizeOf(anyerror)), @intCast(err))))),
         }
     }