diff --git a/lib/index.js b/lib/index.js
index 4a46900..b88ae01 100644
--- a/lib/index.js
+++ b/lib/index.js
@@ -87,6 +87,9 @@ GitStats.prototype.getConfig = function (callback) {
         }
         return {};
     }
+    if (callback) {
+        callback(null, data);
+    }
     return data;
 };