diff --git a/src/etc/rc.carpbackup b/src/etc/rc.carpbackup
index 36cf6a2a9..4fc8b99b2 100755
--- a/src/etc/rc.carpbackup
+++ b/src/etc/rc.carpbackup
@@ -33,10 +33,7 @@ require_once("notices.inc");
 require_once("openvpn.inc");
 require_once("interfaces.inc");
 
-if (isset($_GET))
-        $argument = $_GET['interface'];
-else
-	$argument = str_replace("\n", "", $argv[1]);
+$argument = str_replace("\n", "", $argv[1]);
 if (!strstr($argument, "@"))
         log_error("Carp MASTER event triggered from wrong source {$argument}");
 
diff --git a/src/etc/rc.carpmaster b/src/etc/rc.carpmaster
index 2fb88f77a..3d49a2dcb 100755
--- a/src/etc/rc.carpmaster
+++ b/src/etc/rc.carpmaster
@@ -33,10 +33,7 @@ require_once("notices.inc");
 require_once("openvpn.inc");
 require_once("interfaces.inc");
 
-if (isset($_GET))
-	$argument = $_GET['interface'];
-else
-	$argument = str_replace("\n", "", $argv[1]);
+$argument = str_replace("\n", "", $argv[1]);
 if (!strstr($argument, "@"))
 	log_error("Carp MASTER event triggered from wrong source {$argument}");
 
diff --git a/src/etc/rc.dyndns.update b/src/etc/rc.dyndns.update
index 9d5e94983..753b03bb7 100755
--- a/src/etc/rc.dyndns.update
+++ b/src/etc/rc.dyndns.update
@@ -35,10 +35,7 @@ require_once("shaper.inc");
 
 /* Interface IP address has changed */
 
-if (isset($_GET))
-	$argument = $_GET['dyndns'];
-else
-	$argument = trim($argv[1], " \n");
+$argument = trim($argv[1], " \n");
 
 if(empty($argument) || $argument == "all") {
 	services_dyndns_configure();
diff --git a/src/etc/rc.interfaces_wan_configure b/src/etc/rc.interfaces_wan_configure
index 006450e44..34b0acc42 100755
--- a/src/etc/rc.interfaces_wan_configure
+++ b/src/etc/rc.interfaces_wan_configure
@@ -32,10 +32,7 @@ require_once("functions.inc");
 require_once("filter.inc");
 require_once("shaper.inc");
 
-if (isset($_GET))
-	$argument = $_GET['interface'];
-else
-	$argument = str_replace("\n", "", $argv[1]);
+$argument = str_replace("\n", "", $argv[1]);
 if (empty($argument))
 	interface_configure("wan");
 else {
diff --git a/src/etc/rc.newwanip b/src/etc/rc.newwanip
index 67f30a84c..b72497525 100755
--- a/src/etc/rc.newwanip
+++ b/src/etc/rc.newwanip
@@ -56,10 +56,7 @@ function restart_packages() {
 }
 
 /* Interface IP address has changed */
-if (isset($_GET['interface']))
-	$argument = $_GET['interface'];
-else
-	$argument = str_replace("\n", "", $argv[1]);
+$argument = str_replace("\n", "", $argv[1]);
 
 log_error("rc.newwanip: Informational is starting {$argument}.");
 
diff --git a/src/etc/rc.openvpn b/src/etc/rc.openvpn
index 327896bdc..5fde70893 100755
--- a/src/etc/rc.openvpn
+++ b/src/etc/rc.openvpn
@@ -70,10 +70,7 @@ if (file_exists('/var/run/booting')) {
 }
 
 /* Input argument is a comma-separated list of gateway names, blank or "all". */
-if (isset($_GET))
-	$argument = $_GET['interface'];
-else
-	$argument = trim($argv[1], " \n");
+$argument = trim($argv[1], " \n");
 
 if(is_array($config['openvpn']['openvpn-server']) || is_array($config['openvpn']['openvpn-client'])) {
 	if (empty($argument) || $argument == "all") {