diff --git a/gtk/HTMLStream.custom b/gtk/HTMLStream.custom
new file mode 100644
index 000000000..9338bdeae
--- /dev/null
+++ b/gtk/HTMLStream.custom
@@ -0,0 +1,4 @@
+public void Write (string buffer)
+{
+	gtk_html_stream_write (ref this, buffer, buffer.Length);
+}