diff --git a/etc/inc/filter.inc b/etc/inc/filter.inc
index 883b30a6e8..e0f3244457 100644
--- a/etc/inc/filter.inc
+++ b/etc/inc/filter.inc
@@ -790,22 +790,26 @@ function filter_nat_rules_generate() {
 			if($target <> "") {
 				log_error("target <> ''");
 				if($extport[0] == "21" and !isset($config['interfaces'][strtolower($rule['interface'])]['disableftpproxy'])) {
-					log_error("Testing for /bin/ps awux | grep \"{$target} -b {$external_address}\" | grep -v grep");
-					$helpers = exec("/bin/ps awux | grep \"{$target} -b {$external_address}\" | grep -v grep");
+					if($extaddr == "any") {
+						$external_address_text = "";
+					} else {
+						$external_address_text = " -b {$extaddr}";
+					}
+					$helpers = exec("/bin/ps awux | grep \"{$target}{$external_address_text}\" | grep -v grep");
 					if(!$helpers) {
 						log_error("no helper detected");
 						$external_address = $rule['external-address'];
 						if($external_address == "")
 							$external_address = find_interface_ip(get_real_wan_interface());
-						/*   install a pftpx helper, do not set a rule.  also use the delay filter configure run
-						 *   routines because if this is the first bootup the filter is not completely configured
-                         *   and thus pf is not fully running.   otherwise we end up with: pftpx: pf is disabled
-                         */
-						if($rule['force_ftp_source_ip'])
-							$force_ftp_source_ip = $rule['force_ftp_source_ip'];
-						else
-							$force_ftp_source_ip = "";
-						$after_filter_configure_run[] = "/usr/local/sbin/pftpx -f {$target} -b {$external_address} -c 21 -g 21 {$force_ftp_source_ip} 2>>/tmp/pftpx_errors";
+							/*   install a pftpx helper, do not set a rule.  also use the delay filter configure run
+							 *   routines because if this is the first bootup the filter is not completely configured
+	                         *   and thus pf is not fully running.   otherwise we end up with: pftpx: pf is disabled
+	                         */
+							if($rule['force_ftp_source_ip'])
+								$force_ftp_source_ip = $rule['force_ftp_source_ip'];
+							else
+								$force_ftp_source_ip = "";
+							$after_filter_configure_run[] = "/usr/local/sbin/pftpx -f {$target} -b {$external_address} -c 21 -g 21 {$force_ftp_source_ip} 2>>/tmp/pftpx_errors";
 					}
 					$dontinstallrdr = true;
 				}