diff --git a/src/server/shared/Utilities/Timer.h b/src/server/shared/Utilities/Timer.h
index ee27892ad34..28c7fcd999b 100755
--- a/src/server/shared/Utilities/Timer.h
+++ b/src/server/shared/Utilities/Timer.h
@@ -19,6 +19,7 @@
 #ifndef TRINITY_TIMER_H
 #define TRINITY_TIMER_H
 
+#include "ace/OS_NS_sys_time.h"
 #include "Common.h"
 
 inline uint32 getMSTime()