diff --git a/ArchiSteamFarm/BotConfig.cs b/ArchiSteamFarm/BotConfig.cs
index af4d7c485..9337be839 100644
--- a/ArchiSteamFarm/BotConfig.cs
+++ b/ArchiSteamFarm/BotConfig.cs
@@ -72,7 +72,7 @@ namespace ArchiSteamFarm {
 		[JsonProperty(Required = Required.DisallowNull)]
 		internal readonly bool IsBotAccount = false;
 
-		[JsonProperty(Required = Required.DisallowNull)]
+		[JsonProperty(ObjectCreationHandling = ObjectCreationHandling.Replace, Required = Required.DisallowNull)]
 		internal readonly HashSet<Steam.Item.EType> LootableTypes = new HashSet<Steam.Item.EType> { Steam.Item.EType.BoosterPack, Steam.Item.EType.FoilTradingCard, Steam.Item.EType.TradingCard };
 
 		[JsonProperty(Required = Required.DisallowNull)]
diff --git a/ArchiSteamFarm/GlobalConfig.cs b/ArchiSteamFarm/GlobalConfig.cs
index bad79a597..4aae6f650 100644
--- a/ArchiSteamFarm/GlobalConfig.cs
+++ b/ArchiSteamFarm/GlobalConfig.cs
@@ -50,8 +50,8 @@ namespace ArchiSteamFarm {
 		[JsonProperty(Required = Required.DisallowNull)]
 		internal readonly bool AutoUpdates = true;
 
-		[JsonProperty(Required = Required.DisallowNull)]
-		internal readonly HashSet<uint> Blacklist = new HashSet<uint>(GlobalBlacklist);
+		[JsonProperty(ObjectCreationHandling = ObjectCreationHandling.Replace, Required = Required.DisallowNull)]
+		internal readonly HashSet<uint> Blacklist = GlobalBlacklist;
 
 		[JsonProperty(Required = Required.DisallowNull)]
 		internal readonly bool Debug = false;
diff --git a/ConfigGenerator/BotConfig.cs b/ConfigGenerator/BotConfig.cs
index 9806a720c..2cc29d617 100644
--- a/ConfigGenerator/BotConfig.cs
+++ b/ConfigGenerator/BotConfig.cs
@@ -78,8 +78,8 @@ namespace ConfigGenerator {
 		[JsonProperty(Required = Required.DisallowNull)]
 		public bool IsBotAccount { get; set; } = false;
 
-		[JsonProperty(Required = Required.DisallowNull)]
-		public List<Steam.Item.EType> LootableTypes { get; set; } = new List<Steam.Item.EType>();
+		[JsonProperty(ObjectCreationHandling = ObjectCreationHandling.Replace, Required = Required.DisallowNull)]
+		public List<Steam.Item.EType> LootableTypes { get; set; } = new List<Steam.Item.EType> { Steam.Item.EType.BoosterPack, Steam.Item.EType.FoilTradingCard, Steam.Item.EType.TradingCard };
 
 		[Category("\tAccess")]
 		[JsonProperty(Required = Required.DisallowNull)]
@@ -145,9 +145,6 @@ namespace ConfigGenerator {
 				throw new ArgumentNullException(nameof(filePath));
 			}
 
-			LootableTypes.Add(Steam.Item.EType.BoosterPack);
-			LootableTypes.Add(Steam.Item.EType.FoilTradingCard);
-			LootableTypes.Add(Steam.Item.EType.TradingCard);
 			Save();
 		}
 
diff --git a/ConfigGenerator/GlobalConfig.cs b/ConfigGenerator/GlobalConfig.cs
index 05e2ad74a..699d1db0a 100644
--- a/ConfigGenerator/GlobalConfig.cs
+++ b/ConfigGenerator/GlobalConfig.cs
@@ -53,8 +53,8 @@ namespace ConfigGenerator {
 		[JsonProperty(Required = Required.DisallowNull)]
 		public bool AutoUpdates { get; set; } = true;
 
-		[JsonProperty(Required = Required.DisallowNull)]
-		public List<uint> Blacklist { get; set; } = new List<uint>();
+		[JsonProperty(ObjectCreationHandling = ObjectCreationHandling.Replace, Required = Required.DisallowNull)]
+		public List<uint> Blacklist { get; set; } = new List<uint>(GlobalBlacklist);
 
 		[Category("\tDebugging")]
 		[JsonProperty(Required = Required.DisallowNull)]
@@ -126,7 +126,6 @@ namespace ConfigGenerator {
 				throw new ArgumentNullException(nameof(filePath));
 			}
 
-			Blacklist.AddRange(GlobalBlacklist);
 			Save();
 		}