diff --git a/header.go b/header.go
index 40dc2d6..c8d9835 100644
--- a/header.go
+++ b/header.go
@@ -69,7 +69,7 @@ type RequestHeader struct {
 
 // IsMethodGet returns true if request method is GET.
 func (h *RequestHeader) IsMethodGet() bool {
-	return bytes.Equal(h.Method, strGet)
+	return bytes.Equal(h.Method, strGet) || len(h.Method) == 0
 }
 
 // IsMethodPost returns true if request methos is POST.
diff --git a/header_test.go b/header_test.go
index 727550a..d5af6ac 100644
--- a/header_test.go
+++ b/header_test.go
@@ -10,6 +10,20 @@ import (
 	"testing"
 )
 
+func TestRequestHeaderEmptyMethod(t *testing.T) {
+	var h RequestHeader
+
+	if !h.IsMethodGet() {
+		t.Fatalf("empty method must be equivalent to GET")
+	}
+	if h.IsMethodPost() {
+		t.Fatalf("empty method cannot be POST")
+	}
+	if h.IsMethodHead() {
+		t.Fatalf("empty method cannot be HEAD")
+	}
+}
+
 func TestResponseHeaderHTTPVer(t *testing.T) {
 	// non-http/1.1
 	testResponseHeaderHTTPVer(t, "HTTP/1.0 200 OK\r\nContent-Type: aaa\r\nContent-Length: 123\r\n\r\n", true)