diff --git a/lib/history.js b/lib/history.js
index 80209ed..8a2f122 100644
--- a/lib/history.js
+++ b/lib/history.js
@@ -8,7 +8,9 @@ function push(item) {
 }
 
 function dump() {
-    return history.toarray();
+    const result = history.toarray();
+    console.log(JSON.stringify(result, null, 2));
+    return result;
 }
 
 exports.push = push;