diff --git a/HISTORY.md b/HISTORY.md
index 7fd0375..76eb461 100644
--- a/HISTORY.md
+++ b/HISTORY.md
@@ -1,6 +1,7 @@
 unreleased
 ==========
 
+  * Pretty print JSON error response
   * perf: resolve file paths at start up
 
 1.4.3 / 2016-01-17
diff --git a/index.js b/index.js
index e253afa..53257b2 100644
--- a/index.js
+++ b/index.js
@@ -147,7 +147,7 @@ exports = module.exports = function errorHandler(options) {
     } else if (type === 'json') {
       var error = { message: err.message, stack: err.stack };
       for (var prop in err) error[prop] = err[prop];
-      var json = JSON.stringify({ error: error });
+      var json = JSON.stringify({ error: error }, null, 2)
       res.setHeader('Content-Type', 'application/json; charset=utf-8')
       res.end(json);
     // plain text