Custom Plugin Settings Screen – Saving HTML

I have a very simple plugin that has a settings page. There’s a form input that adds the content to the login screen.

Every time I enter HTML into the field and save it… it strips the html. How can I make it save the html as I write it? Below is what’s in the form.

<input type="text" name="login-custom-message" value="<?php echo htmlentities( $lcmvalue ); ?>">