diff --git a/Makefile.am b/Makefile.am
index d26ed99..25e1358 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -36,3 +36,5 @@
 org/open_power/OCC/PassThrough/error.cpp: ${top_srcdir}/org/open_power/OCC/PassThrough.errors.yaml
 	@mkdir -p `dirname $@`
 	$(SDBUSPLUSPLUS) -r $(top_srcdir) error exception-cpp org.open_power.OCC.PassThrough > $@
+
+SUBDIRS = . test
\ No newline at end of file