diff --git a/lib/less/browser.js b/lib/less/browser.js
index 95813f26..6ce597c8 100644
--- a/lib/less/browser.js
+++ b/lib/less/browser.js
@@ -39,7 +39,7 @@ if (less.env === 'development') {
     }
     less.watchTimer = setInterval(function () {
         if (less.watchMode) {
-            loadStyleSheets(function (root, sheet, env) {
+            loadStyleSheets(function (e, root, sheet, env) {
                 if (root) {
                     createCSS(root.toCSS(), sheet, env.lastModified);
                 }
@@ -78,7 +78,7 @@ less.refresh = function (reload) {
     var startTime, endTime;
     startTime = endTime = new(Date);
 
-    loadStyleSheets(function (root, sheet, env) {
+    loadStyleSheets(function (e, root, sheet, env) {
         if (env.local) {
             log("loading " + sheet.href + " from cache.");
         } else {
@@ -153,7 +153,7 @@ function loadStyleSheet(sheet, callback, reload, remaining) {
                 }).parse(data, function (e, root) {
                     if (e) { return error(e, href) }
                     try {
-                        callback(root, sheet, { local: false, lastModified: lastModified, remaining: remaining });
+                        callback(e, root, sheet, { local: false, lastModified: lastModified, remaining: remaining });
                         removeNode(document.getElementById('less-error-message:' + extractId(href)));
                     } catch (e) {
                         error(e, href);