diff --git a/build/tasks/build-task.coffee b/build/tasks/build-task.coffee
index e4ff2578c..76ae4b056 100644
--- a/build/tasks/build-task.coffee
+++ b/build/tasks/build-task.coffee
@@ -48,6 +48,7 @@ module.exports = (grunt) ->
       path.join('bootstrap', 'docs')
       path.join('bootstrap', 'examples')
       path.join('pegjs', 'examples')
+      path.join('plist', 'tests')
       # Add .* to avoid matching hunspell_dictionaries.
       path.join('spellchecker', 'vendor', 'hunspell', '.*')
       path.join('xmldom', 'test')