1 files changed, 1 insertions, 1 deletions
diff --git a/lib/js/urweb.js b/lib/js/urweb.js
index 4daee66d..f4ed111b 100644
--- a/lib/js/urweb.js
+++ b/lib/js/urweb.js
@@ -88,7 +88,7 @@ function inp(t, s) {
   var x = document.createElement(t);
   x.value = s.v;
   addNode(x);
-  s.h = cons(function() { x.value = s.v }, s.h);
+  s.h = cons(function() { if (x.value != s.v) x.value = s.v }, s.h);
   x.onkeyup = function() { sv(s, x.value) };
   return x;
 }