diff --git a/Makefile.include b/Makefile.include
index 07b530890..ac2c4ee54 100644
--- a/Makefile.include
+++ b/Makefile.include
@@ -50,7 +50,7 @@ include $(CONTIKI)/core/net/mac/Makefile.mac
 SYSTEM  = process.c procinit.c autostart.c elfloader.c profile.c timetable.c timetable-aggregate.c
 THREADS = mt.c
 LIBS    = memb.c timer.c list.c etimer.c energest.c rtimer.c stimer.c \
-          print-stats.c ifft.c crc16.c random.c
+          print-stats.c ifft.c crc16.c random.c checkpoint.c
 
 ifdef UIP_CONF_IPV6
 CFLAGS += -DUIP_CONF_IPV6