diff --git a/configs/T1042D4RDB_SECURE_BOOT_defconfig b/configs/T1042D4RDB_SECURE_BOOT_defconfig
index 97a42db..fa3c412 100644
--- a/configs/T1042D4RDB_SECURE_BOOT_defconfig
+++ b/configs/T1042D4RDB_SECURE_BOOT_defconfig
@@ -29,4 +29,5 @@
 CONFIG_USB=y
 CONFIG_USB_STORAGE=y
 CONFIG_RSA=y
+CONFIG_SPL_RSA=y
 CONFIG_OF_LIBFDT=y