--- a/brewco/Makefile	Wed Nov 25 22:49:35 2015 +0100
+++ b/brewco/Makefile	Thu Nov 26 22:47:42 2015 +0100
@@ -62,5 +62,6 @@
 lcd-pcf8574.o: brewco.h lcd-pcf8574.h slcd.h
 pid.o: brewco.h pid.h
 xutil.o: brewco.h xutil.h
+keyboard.o: brewco.h lcd-pcf8574.h slcd.h keyboard.h
 rdconfig.o: rdconfig.h brewco.h futil.h xutil.h
 # End of generated dependencies