get_template_directory_uri does not seem to work when defining WP_CONTENT_DIR

I have defined in my config:

define( 'WP_CONTENT_DIR', dirname(__FILE__) . '/somedirectory' );

after Codex: Editing WP Config

BUT <?php echo get_template_directory_uri(); ?> prints out:

http://dev.domain.com/wp-content/themes/mytheme

Even though it should print out

http://dev.domain.com/somedirectory/themes/mytheme

Has anyone else experienced this or know of a fix?

This is how i set my content directory in wp-config.php

// ========================
// Custom Content Directory
// ========================
define( 'WP_CONTENT_DIR', dirname( __FILE__ ) . '/somedir' );
define( 'WP_CONTENT_URL', 'http://' . $_SERVER['HTTP_HOST'] . '/somedir' );