Prevent Facepile error
Prevent Facepile error

Fixes #196
pfefferle/wordpress-semantic-linkbacks,pfefferle/wordpress-semantic-linkbacks,pfefferle/wordpress-semantic-linkbacks,pfefferle/wordpress-semantic-linkbacks,dshanske/wordpress-semantic-linkbacks,dshanske/wordpress-semantic-linkbacks,dshanske/wordpress-semantic-linkbacks,dshanske/wordpress-semantic-linkbacks