diff --git a/composite.cpp b/composite.cpp
index 3005d22177..c36d83164a 100644
--- a/composite.cpp
+++ b/composite.cpp
@@ -90,6 +90,7 @@ Compositor::Compositor(QObject* workspace)
     , fpsInterval(0)
     , m_xrrRefreshRate(0)
     , m_finishing(false)
+    , m_starting(false)
     , m_timeSinceLastVBlank(0)
     , m_scene(NULL)
     , m_bufferSwapPending(false)