diff --git a/docs/configuration.md b/docs/configuration.md
index 718e109..8e6b5c7 100644
--- a/docs/configuration.md
+++ b/docs/configuration.md
@@ -195,7 +195,7 @@ CoffeeScript files) with:
 
 ```javascript
 coverageReporter: {
-  instrumenters: { ibrik : require('ibrik') }
+  instrumenters: { ibrik : require('ibrik') },
   instrumenter: {
     '**/*.coffee': 'ibrik'
   },