diff --git a/boot/zephyr/Kconfig b/boot/zephyr/Kconfig
index 3679373f5..a6c17d98f 100644
--- a/boot/zephyr/Kconfig
+++ b/boot/zephyr/Kconfig
@@ -5,6 +5,8 @@
 # SPDX-License-Identifier: Apache-2.0
 #
 
+source "$(KCONFIG_ENV_FILE)"
+
 mainmenu "MCUboot configuration"
 
 comment "MCUboot-specific configuration options"