diff --git a/doq_quic_free.go b/doq_quic_free.go
deleted file mode 100644
index 36fd63c..0000000
--- a/doq_quic_free.go
+++ /dev/null
@@ -1,18 +0,0 @@
-//go:build qf
-
-package ctrld
-
-import (
-	"context"
-	"errors"
-
-	"github.com/miekg/dns"
-)
-
-type doqResolver struct {
-	uc *UpstreamConfig
-}
-
-func (r *doqResolver) Resolve(ctx context.Context, msg *dns.Msg) (*dns.Msg, error) {
-	return nil, errors.New("DoQ is not supported")
-}