diff --git a/xpcom/threads/Scheduler.h b/xpcom/threads/Scheduler.h
index 09445a31024b..fe7f63b3bb1c 100644
--- a/xpcom/threads/Scheduler.h
+++ b/xpcom/threads/Scheduler.h
@@ -10,9 +10,7 @@
 #include "mozilla/Attributes.h"
 #include "mozilla/EventQueue.h"
 #include "mozilla/RefPtr.h"
-#include "mozilla/ThreadLocal.h"
 #include "mozilla/UniquePtr.h"
-#include "nsTArray.h"
 
 // Windows silliness. winbase.h defines an empty no-argument Yield macro.
 #undef Yield