how is not being recognized

I would like to give some feedback about ...

From: https://checkio.org/mission/monkey-typing/solve/

HTTP_USER_AGENT:

Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/51.0.2704.103 Safari/537.36

def count_words(text, words): text.lower()

count = 0

for word in words:
    print(word)
    if word in text:
        print(word)
        count+=1


return count

this code should work but it doesn't for the word how for a reason I can't understand