diff --git a/src/engine/loot/WorkOrder.java b/src/engine/loot/WorkOrder.java
index d1e534a9..830791f1 100644
--- a/src/engine/loot/WorkOrder.java
+++ b/src/engine/loot/WorkOrder.java
@@ -192,7 +192,7 @@ public class WorkOrder implements Delayed {
         } else {
             int remainingAmount = workOrder.production_cost_total.get(mbEnums.ResourceType.GOLD) - strongbox;
             workOrder.vendor.building.setStrongboxValue(0);
-            workOrder.production_cost_total.put(mbEnums.ResourceType.GOLD, workOrder.production_cost_total.put(mbEnums.ResourceType.GOLD, workOrder.production_cost_total.get(mbEnums.ResourceType.GOLD) - remainingAmount));
+            workOrder.production_cost_total.put(mbEnums.ResourceType.GOLD, workOrder.production_cost_total.get(mbEnums.ResourceType.GOLD) - remainingAmount);
         }
 
         // There is an overflow at this point and a warehouse is required