diff --git a/src/module-cache.coffee b/src/module-cache.coffee
index 5df5f254c..de4257bfc 100644
--- a/src/module-cache.coffee
+++ b/src/module-cache.coffee
@@ -163,3 +163,5 @@ exports.add = (directoryPath, metadata) ->
       cache.folders[path.join(directoryPath, folderPath)] = entry.dependencies
 
   undefined
+
+exports.cache = cache