diff --git a/project/src/helpers/HandbookHelper.ts b/project/src/helpers/HandbookHelper.ts
index 86046b2a..d217dab6 100644
--- a/project/src/helpers/HandbookHelper.ts
+++ b/project/src/helpers/HandbookHelper.ts
@@ -83,7 +83,7 @@ export class HandbookHelper
 
         if (this.handbookPriceCache.items.byId.has(tpl))
         {
-            return this.handbookPriceCache.items.byId[tpl];
+            return this.handbookPriceCache.items.byId.get(tpl);
         }
 
         const handbookItem = this.databaseServer.getTables().templates.handbook.Items.find(x => x.Id === tpl);