diff --git a/core/dnsserver/server-tls.go b/core/dnsserver/server-tls.go
index ce3ab8185..55802d158 100644
--- a/core/dnsserver/server-tls.go
+++ b/core/dnsserver/server-tls.go
@@ -1,12 +1,12 @@
 package dnsserver
 
 import (
-	"context"
 	"crypto/tls"
 	"fmt"
 	"net"
 
 	"github.com/miekg/dns"
+	"golang.org/x/net/context"
 )
 
 // ServerTLS represents an instance of a TLS-over-DNS-server.