diff --git a/responses/10_create-python-file.md b/responses/10_create-python-file.md
index 9313a56..8a057a4 100644
--- a/responses/10_create-python-file.md
+++ b/responses/10_create-python-file.md
@@ -57,7 +57,7 @@ If Python is a new programming language to you, like always don't worry. You are
    # Select a random fact from the fact_list and return it
    # into a variable named random_fact so we can use it
    def select_random_fact(fact_arr):
-       return fact_arr[random.randint(0, len(fact_list)+1)]
+       return fact_arr[random.randint(0, len(fact_list)-1)]
 
    random_fact = select_random_fact(fact_list)