incorrect table name when making query on table ad_statistics

* user warning: Table 'drupal.ad_statistics' doesn't exist query: SELECT COUNT(*) FROM ad_statistics WHERE action NOT IN ('view', 'click') AND aid = 8 in ....../sites/all/modules/ad/ad.pages.inc on line 264.

at line of file ad.pages.inc,
$sql = "SELECT * FROM ad_statistics WHERE action NOT IN ('view', 'click') AND aid = %d";
should be
$sql = "SELECT * FROM {ad_statistics} WHERE action NOT IN ('view', 'click') AND aid = %d";

thanks