diff --git a/arch/sandbox/lib/Makefile b/arch/sandbox/lib/Makefile
index 4c1a38d..6480ebf 100644
--- a/arch/sandbox/lib/Makefile
+++ b/arch/sandbox/lib/Makefile
@@ -8,4 +8,4 @@
 #
 
 
-obj-y	+= interrupts.o
+obj-y	+= interrupts.o sandbox.o