diff --git a/app/templates/main.html b/app/templates/main.html
index 2c2985f..66e8760 100644
--- a/app/templates/main.html
+++ b/app/templates/main.html
@@ -23,7 +23,7 @@
 <hr>
 
 <p>
-<div><img src="{{ genurl }}?size=512&data={{ data | urlencode }}"> <br/>
+<div><img src="{{ genurl }}?size=256&data={{ data | urlencode }}"> <br/>
 	{{ data }}
 </div>
 </p>