diff --git a/src/Makefile.am b/src/Makefile.am
index 9b4cb5192..a92a55702 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -78,8 +78,8 @@ endif
 if OS_IS_WIN32
 PA_THREAD_OBJS = \
 		pulsecore/mutex-win32.c pulsecore/mutex.h \
-		pulsecore/thread-win32.c pulsecore/thread.h \
-		pulsecore/semaphore-win32.c pulsecore/semaphore.h
+		pulsecore/thread-win32.c pulsecore/thread.h
+#		pulsecore/semaphore-win32.c pulsecore/semaphore.h
 else
 PA_THREAD_OBJS = \
 		pulsecore/mutex-posix.c pulsecore/mutex.h \