diff --git a/grocery-shopping/main.py b/grocery-shopping/main.py
index 52116ca..e91524e 100644
--- a/grocery-shopping/main.py
+++ b/grocery-shopping/main.py
@@ -3,7 +3,7 @@
 items = grocery_list_repository.read()
 
 
-def options(option):
+def options(option: int):
     if option == 1:
         item = input("Enter the item: ")
         global items