How to execute conditional statement for add_action

This piece of code displays a message in the middle of my front home page(functions.php):

/** Add the page title section */
add_action( 'genesis_after_header', 'minimum_page_title' );
function minimum_page_title() {
	require_once( get_stylesheet_directory() . '/page-title.php' );
}

Problem is that all other non-home pages are also displaying the same message above post titles. I would like to do something like this:

/** Add the page title section */
if ( is_home() ){
add_action( 'genesis_after_header', 'minimum_page_title' );
}
else {
add_action( 'genesis_after_content', 'minimum_page_title' );
}

function minimum_page_title() {
	require_once( get_stylesheet_directory() . '/page-title.php' );
}

But this does not work. Can someone suggest an alternative way of properly coding it?

Many thanks in advance