diff --git a/http/errors_test.go b/http/errors_test.go
index 48b8359319ac8c95fc693b3e9bb397bc2c1b1e1d..bb5b68491cb9e9a53a4c33d13a6cec53ad19aa34 100644
--- a/http/errors_test.go
+++ b/http/errors_test.go
@@ -165,7 +165,7 @@ func TestUnhandledMethod(t *testing.T) {
 		AllowGet: false,
 		Code:     http.StatusMethodNotAllowed,
 		ResHeaders: map[string]string{
-			"Allow": "POST, HEAD, OPTIONS",
+			"Allow": "POST, OPTIONS",
 		},
 	}
 	tc.test(t)
diff --git a/http/handler.go b/http/handler.go
index a1756f6d51a1b2b0e05c40cb8ae2e12485336808..7272b614077cfcf7d900bdfc8a82b1615ad0eb08 100644
--- a/http/handler.go
+++ b/http/handler.go
@@ -192,10 +192,10 @@ func (h *handler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
 }
 
 func setAllowedHeaders(w http.ResponseWriter, allowGet bool) {
-	w.Header().Add("Allow", http.MethodHead)
 	w.Header().Add("Allow", http.MethodOptions)
 	w.Header().Add("Allow", http.MethodPost)
 	if allowGet {
+		w.Header().Add("Allow", http.MethodHead)
 		w.Header().Add("Allow", http.MethodGet)
 	}
 }