diff --git a/tests/Makefile.am b/tests/Makefile.am
index e0a383c..7403216 100644
--- a/tests/Makefile.am
+++ b/tests/Makefile.am
@@ -1,5 +1,9 @@
 
-SUBDIRS = tests-asn1c-compiler tests-skeletons tests-c-compiler
+SUBDIRS = \
+    tests-asn1c-compiler    \
+    tests-skeletons         \
+    tests-c-compiler        \
+    tests-randomized
 
 EXTRA_DIST = README