diff --git a/src/plugins/todo/Todo.pluginspec.in b/src/plugins/todo/Todo.pluginspec.in
index ad44b5dca892169ec1afa95a1bf42f9f8043d442..edbb711cd6025bc5baba9bf511a42749f4ec376e 100644
--- a/src/plugins/todo/Todo.pluginspec.in
+++ b/src/plugins/todo/Todo.pluginspec.in
@@ -1,4 +1,4 @@
-<plugin name=\"Todo\" version=\"$$QTCREATOR_VERSION\" compatVersion=\"$$QTCREATOR_VERSION\">
+<plugin name=\"Todo\" version=\"$$QTCREATOR_VERSION\" compatVersion=\"$$QTCREATOR_VERSION\" experimental=\"true\">
   <vendor>Dmitry Savchenko</vendor>
   <copyright>(C) 2012 Dmitry Savchenko, (C) 2010 Vasiliy Sorokin</copyright>
   <license>