diff --git a/include/configs/sandbox.h b/include/configs/sandbox.h
index d7043298e3..98dd083302 100644
--- a/include/configs/sandbox.h
+++ b/include/configs/sandbox.h
@@ -43,6 +43,8 @@
 #define CONFIG_OF_LIBFDT
 #define CONFIG_LMB
 #define CONFIG_FIT
+#define CONFIG_FIT_SIGNATURE
+#define CONFIG_RSA
 #define CONFIG_CMD_FDT
 
 #define CONFIG_FS_FAT