diff --git a/meta-digi-arm/conf/machine/include/ccimx8mn.inc b/meta-digi-arm/conf/machine/include/ccimx8mn.inc
index e94d7e96e..ac0ee1ff2 100644
--- a/meta-digi-arm/conf/machine/include/ccimx8mn.inc
+++ b/meta-digi-arm/conf/machine/include/ccimx8mn.inc
@@ -62,7 +62,6 @@ VIRTUAL-RUNTIME_initscripts ?= "initscripts"
 TRUSTFENCE_SIGN_MODE = "HAB"
 # TODO: Encryption not yet supported
 TRUSTFENCE_DEK_PATH = "0"
-TRUSTFENCE_ENCRYPT_ENVIRONMENT = "0"
 
 # Adding 'wayland' along with 'x11' enables the xwayland backend
 # Vulkan is necessary for wayland to build