diff --git a/Makefile.include b/Makefile.include
index 0b5a02d69..19fec4638 100644
--- a/Makefile.include
+++ b/Makefile.include
@@ -51,7 +51,7 @@ include $(CONTIKI)/core/net/mac/Makefile.mac
 SYSTEM  = process.c procinit.c autostart.c elfloader.c profile.c \
           timetable.c timetable-aggregate.c compower.c serial-line.c
 THREADS = mt.c
-LIBS    = memb.c timer.c list.c etimer.c energest.c rtimer.c stimer.c \
+LIBS    = memb.c mmem.c timer.c list.c etimer.c energest.c rtimer.c stimer.c \
           print-stats.c ifft.c crc16.c random.c checkpoint.c ringbuf.c
 
 ifdef UIP_CONF_IPV6