diff --git a/README.md b/README.md
index acecb38..04b143f 100644
--- a/README.md
+++ b/README.md
@@ -103,7 +103,7 @@ $ brew install https://raw.githubusercontent.com/moul/ssh2docker/master/contrib/
 
 ### master (unreleased)
 
-* No entry
+* Flexible parsing of the input URL
 
 [full commits list](https://github.com/moul/gotty-client/compare/v1.3.0...master)
 
diff --git a/gotty-client.go b/gotty-client.go
index 9b4d958..ac67834 100644
--- a/gotty-client.go
+++ b/gotty-client.go
@@ -372,11 +372,30 @@ func (c *Client) SetOutput(w io.Writer) {
 	c.Output = w
 }
 
+// ParseURL parses an URL which may be incomplete and tries to standardize it
+func ParseURL(input string) (string, error) {
+	parsed, err := url.Parse(input)
+	if err != nil {
+		return "", err
+	}
+	switch parsed.Scheme {
+	case "http", "https":
+		// everything is ok
+	default:
+		return ParseURL(fmt.Sprintf("http://%s", input))
+	}
+	return parsed.String(), nil
+}
+
 // NewClient returns a GoTTY client object
-func NewClient(httpURL string) (*Client, error) {
+func NewClient(inputURL string) (*Client, error) {
+	url, err := ParseURL(inputURL)
+	if err != nil {
+		return nil, err
+	}
 	return &Client{
 		Dialer:     &websocket.Dialer{},
-		URL:        httpURL,
+		URL:        url,
 		WriteMutex: &sync.Mutex{},
 		Output:     os.Stdout,
 		QuitChan:   make(chan struct{}),