diff --git a/garbageTruck.py b/garbageTruck.py
index 4385c51..2b0fad5 100644
--- a/garbageTruck.py
+++ b/garbageTruck.py
@@ -2,12 +2,11 @@ from typing import List
 
 class GarbageTruck:
     position: Tuple[int, int]
-    paper: []
-    plastic_and_metal: []
-    glass: []
-    bio: []
-    mixed: []
-    RecognizedGarbage: []
+    paper: List[RecognizedGarbage]
+    plastic_and_metal: List[RecognizedGarbage]
+    glass: List[RecognizedGarbage]
+    bio: List[RecognizedGarbage]
+    mixed: List[RecognizedGarbage]
     truckSpritePath = 'imgs/dust_car.png'
     def __init__(self, position: List[int, int]) -> None:
         self.position = position