diff --git a/src/Corpus.zig b/src/Corpus.zig
index 42164fd..29397fe 100644
--- a/src/Corpus.zig
+++ b/src/Corpus.zig
@@ -167,11 +167,14 @@ pub fn init(
 
         for (groupmembers) |member_name| {
             if (name2user.get(member_name)) |user_idx| {
-
-                // if user is in a group of their primary gid,
-                // skip the membersip.
-                if (users.items(.gid)[user_idx] == groups.items(.gid)[i])
-                    continue;
+                // If user is in a group of their primary gid,
+                // skip the membersip. This is what classical tools do
+                // (look at your etc/passwd), but not what Ours Truly
+                // nss implementation does.
+                // - Uncomment this code to behave how Classics behave.
+                // - Leave commented to be compatible with Ours Truly NSS.
+                //if (users.items(.gid)[user_idx] == groups.items(.gid)[i])
+                //    continue;
                 members.len += 1;
                 members[members.len - 1] = user_idx;
                 try user2groups[user_idx].append(allocator, @intCast(u32, i));