diff --git a/ArchiSteamFarm/Json/Steam.cs b/ArchiSteamFarm/Json/Steam.cs
index c603b1adc..25af576e6 100644
--- a/ArchiSteamFarm/Json/Steam.cs
+++ b/ArchiSteamFarm/Json/Steam.cs
@@ -211,7 +211,8 @@ namespace ArchiSteamFarm.Json {
 				SaleItem,
 				Consumable,
 				ProfileModifier,
-				Sticker
+				Sticker,
+				ChatEffect
 			}
 		}
 
@@ -639,6 +640,10 @@ namespace ArchiSteamFarm.Json {
 									case "item_class_11":
 										type = Asset.EType.Sticker;
 
+										break;
+									case "item_class_12":
+										type = Asset.EType.ChatEffect;
+
 										break;
 									default:
 										ASF.ArchiLogger.LogGenericError(string.Format(Strings.WarningUnknownValuePleaseReport, nameof(tag.Value), tag.Value));