diff --git a/test/support/test_helper.js b/test/support/test_helper.js
index f964a17c..8c1cb519 100644
--- a/test/support/test_helper.js
+++ b/test/support/test_helper.js
@@ -90,7 +90,7 @@ after(function(done) {
         delete databasesTasks[db];
         keys.forEach(function(k) {
             if (!expectedKeys[k]) {
-                keysFound.push(k);
+                keysFound.push('[db='+db+']'+k);
             }
         });