diff --git a/src/engine/mbEnums.java b/src/engine/mbEnums.java
index 6f6e27a4..cebc0eb0 100644
--- a/src/engine/mbEnums.java
+++ b/src/engine/mbEnums.java
@@ -8,7 +8,6 @@
 
 package engine;
 
-import ch.claude_martin.enumbitset.EnumBitSetHelper;
 import engine.gameManager.ConfigManager;
 import engine.gameManager.PowersManager;
 import engine.gameManager.ZoneManager;
@@ -2744,7 +2743,7 @@ public class mbEnums {
         }
     }
 
-    public enum ResourceType implements EnumBitSetHelper<ResourceType> {
+    public enum ResourceType {
 
         GOLD(7, 2308551, 100000000, 10),
         ADAMANT(1580003, -1741189964, 1000, 10),
diff --git a/src/engine/objects/Warehouse.java b/src/engine/objects/Warehouse.java
index 1ae97564..0f30940d 100644
--- a/src/engine/objects/Warehouse.java
+++ b/src/engine/objects/Warehouse.java
@@ -9,9 +9,9 @@
 
 package engine.objects;
 
-import engine.mbEnums;
 import engine.gameManager.ChatManager;
 import engine.gameManager.DbManager;
+import engine.mbEnums;
 import engine.net.Dispatch;
 import engine.net.DispatchMessage;
 import engine.net.client.ClientConnection;
@@ -637,7 +637,7 @@ public class Warehouse {
     }
 
     public static boolean isResourceLocked(Warehouse warehouse, mbEnums.ResourceType resourceType) {
-        return resourceType.elementOf(warehouse.locked);
+        return warehouse.locked.contains(resourceType);
     }
 
 }
\ No newline at end of file