diff --git a/Makefile b/Makefile
index fee320ff..010b5731 100644
--- a/Makefile
+++ b/Makefile
@@ -5,6 +5,11 @@ DIRS=driverlib projects
 
 all:
 	@for d in ${DIRS}; do \
-	   make -C $$d ;\
+	   ${MAKE} -C $$d ;\
+	done
+
+clean:
+	@for d in ${DIRS}; do \
+	   ${MAKE} -C $$d clean ;\
 	done
 
diff --git a/projects/Makefile b/projects/Makefile
index 5622bdcd..05aa483b 100644
--- a/projects/Makefile
+++ b/projects/Makefile
@@ -1,10 +1,14 @@
 
 include ../makedefs
 
-DIRS=blinky uart_echo project0
+DIRS=blinky uart_echo project0 i2c-sensors project1
 
 all:
 	@for d in ${DIRS}; do \
 	   make -C $$d ;\
 	done
 
+clean:
+	@for d in ${DIRS}; do \
+	   make -C $$d clean ;\
+	done