diff --git a/sample/gtk-html-sample.cs b/sample/gtk-html-sample.cs
index 723e11349..b594503c7 100644
--- a/sample/gtk-html-sample.cs
+++ b/sample/gtk-html-sample.cs
@@ -14,9 +14,9 @@ class HTMLSample {
win.Add (html);
HTMLStream s = html.Begin ("text/html");
- if (args.Length > 0){
- StreamReader r = new StreamReader (File.OpenRead (args [0]));
- s.Write (r.ReadToEnd ());
+ if (args.Length > 0) {
+ using (StreamReader r = File.OpenText (args [0]))
+ s.Write (r.ReadToEnd ());
} else {
s.Write ("");
s.Write ("Hello world!");