diff --git a/Makefile.am b/Makefile.am
index 9baa62b..7b34537 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -17,3 +17,6 @@
 if WANT_CONTROL
 SUBDIRS += control
 endif
+if WANT_COOLING_TYPE
+SUBDIRS += chassis-cooling-type
+endif