diff --git a/README.md b/README.md
index 2a00248..1f0d505 100644
--- a/README.md
+++ b/README.md
@@ -19,7 +19,7 @@ and then on the command line,
 lessc file.less --autoprefix="browsers"
 ```
 
-The browsers are a comma seperated list of [browsers as specified with autoprefixer](https://github.com/postcss/autoprefixer#browsers).
+The browsers are a comma seperated list of [browsers as specified with autoprefixer](https://github.com/postcss/autoprefixer#browsers). For use autoprefixer grid fallback option, add "grid-on" in browser list.
 
 ## Programmatic usage
 
diff --git a/lib/parse-options.js b/lib/parse-options.js
index 3f4eb3b..a7621e6 100644
--- a/lib/parse-options.js
+++ b/lib/parse-options.js
@@ -1,7 +1,10 @@
 module.exports = function(options) {
     if (typeof options === 'string') {
-        var browsers = options.replace(/\s*,\s*/g, ",").split(",");
-        options = {browsers: browsers};
+        var options = options.replace(/\s*,\s*/g, ",").split(",");
+        var opt = {
+            browsers: options.filter(function(el){ return el !== 'grid-on' }),
+            grid: options.indexOf('grid-on') != -1 ? true : false
+        };
     }
-    return options;
+    return opt;
 };