diff --git a/board/sandburst/karef/Makefile b/board/sandburst/karef/Makefile
index d5a9b34..ce29b41 100644
--- a/board/sandburst/karef/Makefile
+++ b/board/sandburst/karef/Makefile
@@ -10,11 +10,7 @@
 #
 
 # TBS: add for debugging purposes
-BUILDUSER := $(shell whoami)
-FORCEBUILD := $(shell rm -f karef.o)
-
-ccflags-y += -DBUILDUSER='"$(BUILDUSER)"'
-# TBS: end debugging
+ccflags-y += -DBUILDUSER='"$(shell whoami)"'
 
 obj-y	= karef.o ../common/flash.o ../common/sb_common.o
 extra-y	+= init.o