diff --git a/src/inventory.py b/src/inventory.py
index e6d4a24c..dc8e36bf 100644
--- a/src/inventory.py
+++ b/src/inventory.py
@@ -45,3 +45,6 @@ class Inventory():
     # hint for pylint: this is dictionary like object
     def __getitem__(self, key):
         return self._realInventory[key]
+
+    def __setitem__(self, key, value):
+        self._realInventory[key] = value