--- a/xpcom/threads/nsTimerImpl.cpp
+++ b/xpcom/threads/nsTimerImpl.cpp
@@ -135,17 +135,16 @@ nsTimer::Release(void)
 }
 
 nsTimerImpl::nsTimerImpl(nsITimer* aTimer) :
   mGeneration(0),
   mDelay(0),
   mITimer(aTimer),
   mMutex("nsTimerImpl::mMutex")
 {
-  MOZ_COUNT_CTOR(nsTimerImpl);
   // XXXbsmedberg: shouldn't this be in Init()?
   mEventTarget = static_cast<nsIEventTarget*>(NS_GetCurrentThread());
 }
 
 //static
 nsresult
 nsTimerImpl::Startup()
 {