diff --git a/src/lib/base/EventTypes.cpp b/src/lib/base/EventTypes.cpp
index 6dfeae612..28483ae77 100644
--- a/src/lib/base/EventTypes.cpp
+++ b/src/lib/base/EventTypes.cpp
@@ -8,7 +8,6 @@
 #include "base/IEventQueue.h"
 
 #include <assert.h>
-#include <stddef.h>
 
 EventTypes::EventTypes() : m_events(NULL)
 {