diff --git a/lib/less-browser/index.js b/lib/less-browser/index.js
index 32cca36c..1157d363 100644
--- a/lib/less-browser/index.js
+++ b/lib/less-browser/index.js
@@ -239,12 +239,12 @@ for (var i = 0; i < links.length; i++) {
 // CSS without reloading less-files
 //
 less.modifyVars = function(record) {
-    less.refresh(false, record);
+    return less.refresh(false, record);
 };
 
 less.refresh = function (reload, modifyVars) {
-    return new PromiseConstructor(function(resolve, reject) {
-        var startTime, endTime;
+    less.hasFinished = new PromiseConstructor(function (resolve, reject) {
+        var startTime, endTime, totalMilliseconds;
         startTime = endTime = new Date();
 
         loadStyleSheets(function (e, css, _, sheet, webInfo) {
@@ -262,14 +262,22 @@ less.refresh = function (reload, modifyVars) {
             }
             less.logger.info("css for " + sheet.href + " generated in " + (new Date() - endTime) + 'ms');
             if (webInfo.remaining === 0) {
-                less.logger.info("less has finished. css generated in " + (new Date() - startTime) + 'ms');
-                resolve();
+                totalMilliseconds = new Date() - startTime;
+                less.logger.info("less has finished. css generated in " + totalMilliseconds + 'ms');
+                resolve({
+                    startTime: startTime,
+                    endTime: endTime,
+                    totalMilliseconds: totalMilliseconds,
+                    sheets: less.sheets.length
+                });
             }
             endTime = new Date();
         }, reload, modifyVars);
     
         loadStyles(modifyVars);
     });
+
+    return less.hasFinished;
 };
 
 less.refreshStyles = loadStyles;