diff --git a/tests/Makefile.am b/tests/Makefile.am
index 6869a2c70..964d39087 100644
--- a/tests/Makefile.am
+++ b/tests/Makefile.am
@@ -27,4 +27,5 @@ EXTRA_DIST = \
 	pth_cvsimple.c pth_simple_threads.c pth_simple_mutex.c \
 	bt_everything.c bt_literal.c \
 	pth_threadpool.c pth_specific.c pth_mutexspeed.c malloc3.c \
-	pth_once.c
+	pth_once.c weirdioctl.c pth_signal1.c pth_signal2.c \
+	discard.c