--- a/testcases/kernel/device-drivers/Makefile
+++ b/testcases/kernel/device-drivers/Makefile
@@ -18,6 +18,7 @@
 
 include $(top_srcdir)/include/mk/env_pre.mk
 
-SUBDIRS		:= rtc \
+SUBDIRS		:= block \
+		   rtc \
 
 include $(top_srcdir)/include/mk/generic_trunk_target.mk