diff --git a/src/libCom/timer/timerPrivate.h b/src/libCom/timer/timerPrivate.h
index f673c891b..66141ee4a 100644
--- a/src/libCom/timer/timerPrivate.h
+++ b/src/libCom/timer/timerPrivate.h
@@ -120,8 +120,6 @@ private:
     friend class timerQueueActiveMgr;
 };
 
-extern epicsSingleton < timerQueueActiveMgr > timerQueueMgrEPICS;
-
 class timerQueueActive : public epicsTimerQueueActive, 
     public epicsThreadRunable, public epicsTimerQueueNotify,
     public timerQueueActiveMgrPrivate {
@@ -168,6 +166,8 @@ private:
     timerQueueActiveMgr & operator = ( const timerQueueActiveMgr & );
 };
 
+extern epicsSingleton < timerQueueActiveMgr > timerQueueMgrEPICS;
+
 class timerQueuePassive : public epicsTimerQueuePassive {
 public:
     timerQueuePassive ( epicsTimerQueueNotify & );