Index: wp-admin/includes/class-wp-users-list-table.php
===================================================================
--- wp-admin/includes/class-wp-users-list-table.php	(revision 19341)
+++ wp-admin/includes/class-wp-users-list-table.php	(working copy)
@@ -146,6 +146,7 @@
 			<?php wp_dropdown_roles(); ?>
 		</select>
 		<?php submit_button( __( 'Change' ), 'secondary', 'changeit', false ); ?>
+		<?php do_action( 'extra_tablenav_users' ); ?>
 	</div>
 <?php
 	}