diff --git a/LightlessSyncServer/LightlessSyncServer/Hubs/LightlessHub.Groups.cs b/LightlessSyncServer/LightlessSyncServer/Hubs/LightlessHub.Groups.cs
index 5858cf5..06298f0 100644
--- a/LightlessSyncServer/LightlessSyncServer/Hubs/LightlessHub.Groups.cs
+++ b/LightlessSyncServer/LightlessSyncServer/Hubs/LightlessHub.Groups.cs
@@ -44,7 +44,7 @@ public partial class LightlessHub
         var now = DateTime.UtcNow;
 
         var existingBan = await DbContext.Set<GroupBan>().SingleOrDefaultAsync(b => b.GroupGID == dto.Group.GID && b.BannedUserUID == targetUid, cancellationToken: RequestAbortedToken).ConfigureAwait(false);
-        var userExists = await DbContext.Users.AsNoTracking().AnyAsync(u => u.UID == targetUid, RequestAbortedToken).ConfigureAwait(false);
+        var userExists = await DbContext.Users.AsNoTracking().AnyAsync(u => u.UID == targetUid || u.Alias == targetUid, RequestAbortedToken).ConfigureAwait(false);
 
         if (!userExists && existingBan == null)
             return;
@@ -447,9 +447,9 @@ public partial class LightlessHub
 
         var banEntries = await DbContext.GroupBans.Include(b => b.BannedUser).Where(g => g.GroupGID == dto.Group.GID).AsNoTracking().ToListAsync(cancellationToken: RequestAbortedToken).ConfigureAwait(false);
 
-        List<BannedGroupUserDto> bannedGroupUsers = banEntries.Select(b =>
+        List<BannedGroupUserDto> bannedGroupUsers = [.. banEntries.Select(b =>
             new BannedGroupUserDto(group.ToGroupData(), b.BannedUser.ToUserData(), b.BannedReason, b.BannedOn,
-                b.BannedByUID)).ToList();
+                b.BannedByUID))];
 
         _logger.LogCallInfo(LightlessHubLogger.Args(dto, bannedGroupUsers.Count));