diff --git a/satisfactory/__init__.py b/satisfactory/__init__.py
index 348ccf1..c76b4ed 100644
--- a/satisfactory/__init__.py
+++ b/satisfactory/__init__.py
@@ -1,8 +1,10 @@
 import os
 import json
 
+from typing import Dict
+
 class Cookbook(object):
-    __recipes: dict
+    __recipes: Dict[str, Dict]
 
     def __init__(self, root: str):
         self.__recipes = dict()