diff --git a/lib/Makefile b/lib/Makefile
index 0db41c1..35da570 100644
--- a/lib/Makefile
+++ b/lib/Makefile
@@ -18,6 +18,7 @@
 obj-$(CONFIG_OF_LIVE) += of_live.o
 obj-$(CONFIG_CMD_DHRYSTONE) += dhry/
 obj-$(CONFIG_ARCH_AT91) += at91/
+obj-$(CONFIG_OPTEE) += optee/
 
 obj-$(CONFIG_AES) += aes.o
 obj-y += charset.o