--- a/Makefile	Wed Sep 24 22:41:46 2014 +0300
+++ b/Makefile	Wed Sep 24 22:54:26 2014 +0300
@@ -6,6 +6,7 @@
 HEX = build/src/$(PROG).hex
 
 build/src/hello.elf: build/src/hello.o \
+	build/qmsk/src/serial.o \
 	build/qmsk/src/timer.o
 
 ##