diff --git a/src/user.zig b/src/user.zig
index cc95ea5..e611a1e 100644
--- a/src/user.zig
+++ b/src/user.zig
@@ -1,7 +1,7 @@
 const std = @import("std");
 
-const PackedUserSize = @sizeOf(PackedUser);
-const PackedUser = packed struct {
+pub const PackedUserSize = @sizeOf(PackedUser);
+pub const PackedUser = packed struct {
     uid: u32,
     gid: u32,
     additional_gids_offset: u29,
@@ -16,5 +16,5 @@ const PackedUser = packed struct {
 const testing = std.testing;
 
 test "PackedUser is byte-aligned" {
-    //try testing.expectEqual(PackedUserSize * 8, @bitSizeOf(PackedUser));
+    try testing.expectEqual(0, @rem(@bitSizeOf(PackedUser), 8));
 }