diff --git a/tests/Makefile.am b/tests/Makefile.am
index 6b0ad75..d9654e0 100644
--- a/tests/Makefile.am
+++ b/tests/Makefile.am
@@ -1,3 +1,5 @@
 
+SUBDIRS = tests-asn1c-compiler tests-c-compiler
 
-EXTRA_DIST = README $(srcdir)/*asn1*
+EXTRA_DIST = README
+