diff --git a/index.js b/index.js
index a8aade8..35a7277 100644
--- a/index.js
+++ b/index.js
@@ -7,8 +7,8 @@
 
 module.exports = function (content, file, conf) {
 
-  //log.debug("content");
-  var result = content;
+  //log.debug("content");// 兼容content为buffer的情况
+  var result = content.toString();
   if (!file.isText())
     return result;