more explicit test spec
diff --git a/Makefile.am b/Makefile.am
index 6ff6f13..870ee8f 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -5,10 +5,10 @@
 	libasn1parser libasn1fix	\
 	libasn1print libasn1compiler	\
 	skeletons examples \
-	doc asn1c
+	doc tests asn1c
 
 docsdir = $(datadir)/doc/asn1c
 
 docs_DATA = README.md FAQ ChangeLog BUGS TODO
 
-EXTRA_DIST = README.md FAQ LICENSE BUGS tests/
+EXTRA_DIST = README.md FAQ LICENSE BUGS