diff --git a/coredns_plugin/coredns_plugin.go b/coredns_plugin/coredns_plugin.go
index 520859b..7ca4539 100644
--- a/coredns_plugin/coredns_plugin.go
+++ b/coredns_plugin/coredns_plugin.go
@@ -75,7 +75,7 @@ func setupPlugin(c *caddy.Controller) (*plug, error) {
 	// create new Plugin and copy default values
 	p := &plug{
 		settings: defaultPluginSettings,
-		d:        dnsfilter.New(),
+		d:        dnsfilter.New(nil),
 	}
 
 	log.Println("Initializing the CoreDNS plugin")
@@ -86,7 +86,7 @@ func setupPlugin(c *caddy.Controller) (*plug, error) {
 			switch blockValue {
 			case "safebrowsing":
 				log.Println("Browsing security service is enabled")
-				p.d.EnableSafeBrowsing()
+				p.d.SafeBrowsingEnabled = true
 				if c.NextArg() {
 					if len(c.Val()) == 0 {
 						return nil, c.ArgErr()
@@ -95,7 +95,7 @@ func setupPlugin(c *caddy.Controller) (*plug, error) {
 				}
 			case "safesearch":
 				log.Println("Safe search is enabled")
-				p.d.EnableSafeSearch()
+				p.d.SafeSearchEnabled = true
 			case "parental":
 				if !c.NextArg() {
 					return nil, c.ArgErr()
@@ -106,10 +106,11 @@ func setupPlugin(c *caddy.Controller) (*plug, error) {
 				}
 
 				log.Println("Parental control is enabled")
-				err = p.d.EnableParental(sensitivity)
-				if err != nil {
-					return nil, c.ArgErr()
+				if !dnsfilter.IsParentalSensitivityValid(sensitivity) {
+					return nil, dnsfilter.ErrInvalidParental
 				}
+				p.d.ParentalEnabled = true
+				p.d.ParentalSensitivity = sensitivity
 				if c.NextArg() {
 					if len(c.Val()) == 0 {
 						return nil, c.ArgErr()