diff --git a/src/Discord.Net.Rest/Entities/Messages/CustomSticker.cs b/src/Discord.Net.Rest/Entities/Messages/CustomSticker.cs
index 6fd0f7700a..9626a8c741 100644
--- a/src/Discord.Net.Rest/Entities/Messages/CustomSticker.cs
+++ b/src/Discord.Net.Rest/Entities/Messages/CustomSticker.cs
@@ -34,6 +34,7 @@ internal CustomSticker(BaseDiscordClient client, ulong id, RestGuild guild, ulon
         {
             AuthorId = authorId;
             Guild = guild;
+            GuildId = guild.Id;
         }
         internal CustomSticker(BaseDiscordClient client, ulong id, ulong guildId, ulong? authorId = null)
             : base(client, id)