diff --git a/src/lib/classes/managers/abstract/ResourceManager.ts b/src/lib/classes/managers/abstract/ResourceManager.ts
index 2e4829a..65b2b9b 100644
--- a/src/lib/classes/managers/abstract/ResourceManager.ts
+++ b/src/lib/classes/managers/abstract/ResourceManager.ts
@@ -65,7 +65,7 @@ export default abstract class ResourceManager {
         await this.calculateCurrentAvailableResources();
         for(const res of resources) {
             const resource = this.resources.find(r => r.id === res.id);
-            if(resource) resource.amount += res.amount;
+            if(resource) resource.amount = res.amount;
             else this.resources.push({
                 id: res.id,
                 amount: res.amount,