diff --git a/lib/restler.js b/lib/restler.js
index 4e8e9ea..74bd41f 100644
--- a/lib/restler.js
+++ b/lib/restler.js
@@ -137,7 +137,9 @@ mixin(Request.prototype, {
     } else {
       var body = '';
 
-      response.setEncoding('binary');
+      // When using browserify, response.setEncoding is not defined
+      if (typeof response.setEncoding == 'function')
+        response.setEncoding('binary');
 
       response.on('data', function(chunk) {
         body += chunk;