Passed by reference error on publication pages

The following error appears on rc4 and dev of the 1.x version of biblio when I view a publication:

"Strict warning: Only variables should be passed by reference in theme_biblio_tabular() (line 281 of /var/www/drupal7/sites/all/modules/biblio/includes/biblio_theme.inc)."

Looking at the code the error references, the issue appears to be here:

array('data' => drupal_render(field_view_field('node', $node, 'body', array('label' => 'hidden')))),

if we store the result of field_view_field in a variable and drupal_render that, the error goes away:

$full_text = field_view_field('node', $node, 'body', array('label' => 'hidden'));

$rows[] = array(
array('data' => t('Full Text'), 'valign' => 'top'),
array('data' => drupal_render($full_text)),
);

Is this the best way to fix this error? I am happy to make a patch, but I'm not sure if it is the best way to proceed.