diff --git a/src/etc/inc/interfaces.inc b/src/etc/inc/interfaces.inc
index bd1f04b3b..2ace5e082 100644
--- a/src/etc/inc/interfaces.inc
+++ b/src/etc/inc/interfaces.inc
@@ -3570,7 +3570,7 @@ function DHCP6_Config_File_Advanced($interface, $wancfg, $wanif)
 {
 	$send_options = "";
 	if ($wancfg['adv_dhcp6_interface_statement_send_options'] != '') {
-		$options = split(",", $wancfg['adv_dhcp6_interface_statement_send_options']);
+		$options = preg_split('/\s*,\s*(?=(?:[^"]*"[^"]*")*[^"]*$)/', $wancfg['adv_dhcp6_interface_statement_send_options']);
 		foreach ($options as $option) {
 			$send_options .= "\tsend " . trim($option) . ";\n";
 		}
@@ -3578,7 +3578,7 @@ function DHCP6_Config_File_Advanced($interface, $wancfg, $wanif)
 
 	$request_options = "";
 	if ($wancfg['adv_dhcp6_interface_statement_request_options'] != '') {
-		$options = split(",", $wancfg['adv_dhcp6_interface_statement_request_options']);
+		$options = preg_split('/\s*,\s*(?=(?:[^"]*"[^"]*")*[^"]*$)/', $wancfg['adv_dhcp6_interface_statement_request_options']);
 		foreach ($options as $option) {
 			$request_options .= "\trequest " . trim($option) . ";\n";
 		}
@@ -3830,7 +3830,7 @@ function DHCP_Config_File_Advanced($interface, $wancfg, $wanif) {
 
 	$send_options = "";
 	if ($wancfg['adv_dhcp_send_options'] != '') {
-		$options = split(",", $wancfg['adv_dhcp_send_options']);
+		$options = preg_split('/\s*,\s*(?=(?:[^"]*"[^"]*")*[^"]*$)/', $wancfg['adv_dhcp_send_options']);
 		foreach ($options as $option) {
 			$send_options .= "\tsend " . trim($option) . ";\n";
 		}
@@ -3848,7 +3848,7 @@ function DHCP_Config_File_Advanced($interface, $wancfg, $wanif) {
 
 	$option_modifiers = "";
 	if ($wancfg['adv_dhcp_option_modifiers'] != '') {
-		$modifiers = split(",", $wancfg['adv_dhcp_option_modifiers']);
+		$modifiers = preg_split('/\s*,\s*(?=(?:[^"]*"[^"]*")*[^"]*$)/', $wancfg['adv_dhcp_option_modifiers']);
 		foreach ($modifiers as $modifier) {
 			$option_modifiers .= "\t" . trim($modifier) . ";\n";
 		}