diff --git a/app/dispatcher/fakednssniffer.go b/app/dispatcher/fakednssniffer.go
index 8abb77fb4..6bbef0387 100644
--- a/app/dispatcher/fakednssniffer.go
+++ b/app/dispatcher/fakednssniffer.go
@@ -18,7 +18,7 @@ import (
 func newFakeDNSSniffer(ctx context.Context) (protocolSnifferWithMetadata, error) {
 	var fakeDNSEngine dns.FakeDNSEngine
 	{
-		fakeDNSEngineFeat := core.MustFromContext(ctx).GetFeature(fakeDNSEngine)
+		fakeDNSEngineFeat := core.MustFromContext(ctx).GetFeature((*dns.FakeDNSEngine)(nil))
 		if fakeDNSEngineFeat != nil {
 			fakeDNSEngine = fakeDNSEngineFeat.(dns.FakeDNSEngine)
 		}