diff --git a/Common/dataobjects/PostLayer.cs b/Common/dataobjects/PostLayer.cs
index 8571999..3a38715 100644
--- a/Common/dataobjects/PostLayer.cs
+++ b/Common/dataobjects/PostLayer.cs
@@ -53,10 +53,10 @@ namespace FLocal.Common.dataobjects {
 		public static IEnumerable<PostLayer> allLayers {
 			get {
 				return
-					from id in Cache<IEnumerable<int>>.instance.get(
+					from id in Cache<List<int>>.instance.get(
 						allLayers_Locker,
 						() => {
-							IEnumerable<int> ids = (from stringId in Config.instance.mainConnection.LoadIdsByConditions(
+							List<int> ids = (from stringId in Config.instance.mainConnection.LoadIdsByConditions(
 								TableSpec.instance,
 								new FLocal.Core.DB.conditions.EmptyCondition(),
 								Diapasone.unlimited
diff --git a/Common/dataobjects/PunishmentType.cs b/Common/dataobjects/PunishmentType.cs
index 06f3bdb..0951f31 100644
--- a/Common/dataobjects/PunishmentType.cs
+++ b/Common/dataobjects/PunishmentType.cs
@@ -78,10 +78,10 @@ namespace FLocal.Common.dataobjects {
 		public static IEnumerable<PunishmentType> allTypes {
 			get {
 				return
-					from id in Cache<IEnumerable<int>>.instance.get(
+					from id in Cache<List<int>>.instance.get(
 						allTypes_Locker,
 						() => {
-							IEnumerable<int> ids = (from stringId in Config.instance.mainConnection.LoadIdsByConditions(
+							List<int> ids = (from stringId in Config.instance.mainConnection.LoadIdsByConditions(
 								TableSpec.instance,
 								new FLocal.Core.DB.conditions.EmptyCondition(),
 								Diapasone.unlimited
diff --git a/Common/dataobjects/Skin.cs b/Common/dataobjects/Skin.cs
index 7a6ea07..471295f 100644
--- a/Common/dataobjects/Skin.cs
+++ b/Common/dataobjects/Skin.cs
@@ -38,14 +38,14 @@ namespace FLocal.Common.dataobjects {
 		public static IEnumerable<Skin> allSkins {
 			get {
 				return
-					from id in Cache<IEnumerable<int>>.instance.get(
+					from id in Cache<List<int>>.instance.get(
 						allSkins_Locker,
 						() => {
-							IEnumerable<int> ids = from stringId in Config.instance.mainConnection.LoadIdsByConditions(
+							List<int> ids = (from stringId in Config.instance.mainConnection.LoadIdsByConditions(
 								TableSpec.instance,
 								new FLocal.Core.DB.conditions.EmptyCondition(),
 								Diapasone.unlimited
-							) select int.Parse(stringId);
+							) select int.Parse(stringId)).ToList();
 							Skin.LoadByIds(ids);
 							return ids;
 						}