Change capitalisation in menu

When I add a page to my menu it capitalizes every first word of the sentence when it has a parrent, please see: https://gyazo.com/36f81d8c12342d7a3666a25eb3f1ec97 this is how I configured the menu in the menu editor: https://gyazo.com/6faacaa4164e219d6fae9c4c6917970f As you can see the theme automaticly capitalized every first word of the sentence. Is there any way to turn this off? Thanks in advance.