diff --git a/lib/errors.js b/lib/errors.js
index 4cc0dcc..cb11ef5 100644
--- a/lib/errors.js
+++ b/lib/errors.js
@@ -334,7 +334,7 @@ var create = exports.create = function(options) {
             enumerable: false,
             get: function() {
                 if (!formattedStack) {
-                    formattedStack = stack.stack.replace('[object Object]', 'Error: ' + this.message);
+                    formattedStack = stack.stack.replace(/^(Error|\[object Object\])/, 'Error: ' + this.message);
                 }
                 return formattedStack;
             }