Mistake with linux command

[ManiadT-T]

In the guide it says to run the following command:
find . -name ‘details.html’ -exec cp adbreak.html {} ;
I am on a Linux machine and this did not work as intended, the command I used to fix it was:
find . -type f -name 'details.html' -exec cp ./adbreak.html {} ;

I hope this can help someone out :)