diff --git a/curriculum/challenges/english/07-scientific-computing-with-python/learn-lambda-functions-by-building-an-expense-tracker/66694bfa435cef241f6f9a68.md b/curriculum/challenges/english/07-scientific-computing-with-python/learn-lambda-functions-by-building-an-expense-tracker/66694bfa435cef241f6f9a68.md
index b3d3b6340cf..d0654577288 100644
--- a/curriculum/challenges/english/07-scientific-computing-with-python/learn-lambda-functions-by-building-an-expense-tracker/66694bfa435cef241f6f9a68.md
+++ b/curriculum/challenges/english/07-scientific-computing-with-python/learn-lambda-functions-by-building-an-expense-tracker/66694bfa435cef241f6f9a68.md
@@ -18,7 +18,7 @@ empty_list = []
 
 The list is characterized by the square brackets around all the values, and a comma between the values, like: `["A", "happy", "list"]`. If the list does not contain any values, then it is an empty list: `[]`.
 
-A list can contain different data types: `[1, "Up", ["Down", "Twice]]`. That includes all possible data types. It can also contain another list!
+A list can contain different data types: `[1, "Up", ["Down", "Twice"]]`. That includes all possible data types. It can also contain another list!
 
 Create a variable called `my_list` and assign to it an empty list.