diff --git a/arduino-mk/Arduino.mk b/arduino-mk/Arduino.mk
index 125505b..f2dc959 100644
--- a/arduino-mk/Arduino.mk
+++ b/arduino-mk/Arduino.mk
@@ -674,7 +674,7 @@ ispload:	$(TARGET_HEX)
 			-U lock:w:$(ISP_LOCK_FUSE_POST):m
 
 clean:
-		$(REMOVE) $(LOCAL_OBJS) $(CORE_OBJS) $(LIB_OBJS) $(CORE_LIB) $(TARGETS) $(DEP_FILE) $(DEPS) $(USER_LIB_OBJS)
+		$(REMOVE) $(LOCAL_OBJS) $(CORE_OBJS) $(LIB_OBJS) $(CORE_LIB) $(TARGETS) $(DEP_FILE) $(DEPS) $(USER_LIB_OBJS) @rm -rf ${OBJDIR} 
 
 depends:	$(DEPS)
 		cat $(DEPS) > $(DEP_FILE)