diff --git a/src/engine/gameManager/ForgeManager.java b/src/engine/gameManager/ForgeManager.java
index f1e04c43..3fabf032 100644
--- a/src/engine/gameManager/ForgeManager.java
+++ b/src/engine/gameManager/ForgeManager.java
@@ -106,7 +106,7 @@ public enum ForgeManager implements Runnable {
         // Set total cost for this production run
 
         workOrder.production_cost_total.putAll(workOrder.production_cost);
-        workOrder.production_cost.forEach((key, value) -> workOrder.production_cost_total.compute(key, (k, v) -> v * workOrder.total_to_produce));
+        workOrder.production_cost_total.forEach((key, value) -> workOrder.production_cost_total.compute(key, (k, v) -> v * workOrder.total_to_produce));
 
         // Single item rolls are total_to_produce of 0;