diff --git a/jquery.autosize.input.js b/jquery.autosize.input.js
index d4bf181..9bcef0d 100644
--- a/jquery.autosize.input.js
+++ b/jquery.autosize.input.js
@@ -44,7 +44,7 @@ var Plugins;
         };
 
         AutosizeInput.prototype.update = function () {
-            var value = this._input.val() || "";
+            var value = this._input.val() || this._input.attr('placeholder');
 
             if (value === this._mirror.text()) {
                 // Nothing have changed - skip