Index: wp-includes/link-template.php
===================================================================
--- wp-includes/link-template.php       (revision 123226)
+++ wp-includes/link-template.php       (working copy)
@@ -1591,7 +1591,7 @@
         * @param bool   $in_same_term   Whether post should be in a same taxonomy term.
         * @param array  $excluded_terms Array of excluded term IDs.
         */
-       $join  = apply_filters( "get_{$adjacent}_post_join", $join, $in_same_term, $excluded_terms );
+       $join  = apply_filters( "get_{$adjacent}_post_join", $join, $in_same_term, $excluded_terms, $taxonomy );

        /**
         * Filter the WHERE clause in the SQL for an adjacent post query.
@@ -1605,7 +1605,7 @@
         * @param bool   $in_same_term   Whether post should be in a same taxonomy term.
         * @param array  $excluded_terms Array of excluded term IDs.
         */
-       $where = apply_filters( "get_{$adjacent}_post_where", $wpdb->prepare( "WHERE p.post_date $op %s AND p.post_type = %s $where", $current_post_date, $post->po       st_type ), $in_same_term, $excluded_terms );
+       $where = apply_filters( "get_{$adjacent}_post_where", $wpdb->prepare( "WHERE p.post_date $op %s AND p.post_type = %s $where", $current_post_date, $post->po       st_type ), $in_same_term, $excluded_terms, $taxonomy );

        /**
         * Filter the ORDER BY clause in the SQL for an adjacent post query.