diff --git a/src/etc/inc/xmlrpc/legacy.inc b/src/etc/inc/xmlrpc/legacy.inc
index 94d0611e0..1009622c7 100644
--- a/src/etc/inc/xmlrpc/legacy.inc
+++ b/src/etc/inc/xmlrpc/legacy.inc
@@ -196,6 +196,7 @@ function filter_configure_xmlrpc()
     require_once("vslb.inc");
     require_once("openvpn.inc");
     require_once("services.inc");
+    require_once("rrd.inc");
 
     filter_configure();
     system_routing_configure();
diff --git a/src/etc/rc.filter_configure_xmlrpc b/src/etc/rc.filter_configure_xmlrpc
index 378695610..023440fa5 100755
--- a/src/etc/rc.filter_configure_xmlrpc
+++ b/src/etc/rc.filter_configure_xmlrpc
@@ -42,6 +42,7 @@ require_once("vslb.inc");
 require_once("system.inc");
 require_once("pfsense-utils.inc");
 require_once("services.inc");
+require_once("rrd.inc");
 
 system_routing_configure();
 setup_gateways_monitor();
diff --git a/src/www/system_gateway_groups.php b/src/www/system_gateway_groups.php
index f2b381a63..e82a11dc5 100644
--- a/src/www/system_gateway_groups.php
+++ b/src/www/system_gateway_groups.php
@@ -32,6 +32,7 @@ require_once("interfaces.inc");
 require_once("openvpn.inc");
 require_once("system.inc");
 require_once("pfsense-utils.inc");
+require_once("rrd.inc");
 
 // Resync and restart all VPNs using a gateway group.
 function openvpn_resync_gwgroup($gwgroupname = "") {
diff --git a/src/www/system_gateways.php b/src/www/system_gateways.php
index 09d49e48f..47408cf3f 100644
--- a/src/www/system_gateways.php
+++ b/src/www/system_gateways.php
@@ -33,6 +33,7 @@ require_once("filter.inc");
 require_once("services.inc");
 require_once("system.inc");
 require_once("pfsense-utils.inc");
+require_once("rrd.inc");
 
 $a_gateways = return_gateways_array(true, false, true);
 $a_gateways_arr = array();
diff --git a/src/www/system_routes.php b/src/www/system_routes.php
index 61a1ee97e..5bca616ee 100644
--- a/src/www/system_routes.php
+++ b/src/www/system_routes.php
@@ -32,6 +32,7 @@ require_once("interfaces.inc");
 require_once("filter.inc");
 require_once("system.inc");
 require_once("pfsense-utils.inc");
+require_once("rrd.inc");
 
 if (!is_array($config['staticroutes'])) {
     $config['staticroutes'] = array();