diff --git a/index.js b/index.js
index 0614a4a..4f8176c 100644
--- a/index.js
+++ b/index.js
@@ -23,7 +23,7 @@ module.exports = function (options) {
 
     if (file.sourceMap) {
       opts.sourceComments = 'map';
-      opts.sourceMap = false;
+      opts.sourceMap = file.path;
     }
 
     if (opts.sourceComments === 'map' || opts.sourceComments === 'normal') {