diff --git a/canvas.html b/canvas.html
index b913522..1e29d40 100644
--- a/canvas.html
+++ b/canvas.html
@@ -70,7 +70,7 @@
 
       canvas.style.backgroundColor = 'transparent';
 
-      var xterm = new AnsiTerminal(80, 10, 0);
+      var xterm = new AnsiTerminal(120, 80, 0);
       var canvasXTerm = new CanvasXTerm();
 
       xterm.debug = false;