diff --git a/graphql/graphiql.go b/graphql/graphiql.go
index dfb6b6169b..96810fa0bc 100644
--- a/graphql/graphiql.go
+++ b/graphql/graphiql.go
@@ -52,7 +52,7 @@ func errorJSON(msg string) []byte {
 	return buf.Bytes()
 }
 
-func (h GraphiQL) webHandler(w http.ResponseWriter, r *http.Request) {
+func (h GraphiQL) ServeHTTP(w http.ResponseWriter, r *http.Request) {
 	if r.Method != "GET" {
 		respond(w, errorJSON("only GET requests are supported"), http.StatusMethodNotAllowed)
 		return
diff --git a/graphql/graphql.go b/graphql/graphql.go
index c031bb0534..d22a3afb6f 100644
--- a/graphql/graphql.go
+++ b/graphql/graphql.go
@@ -1158,7 +1158,7 @@ func NewHandler(be *eth.EthAPIBackend) (http.Handler, error) {
 	h := &relay.Handler{Schema: s}
 
 	mux := http.NewServeMux()
-	mux.HandleFunc("/", (GraphiQL{}).webHandler)
+	mux.Handle("/", GraphiQL{})
 	mux.Handle("/graphql", h)
 	mux.Handle("/graphql/", h)
 	return mux, nil