diff --git a/zephyr/prj_base.conf b/zephyr/prj_base.conf
index 295963023b..b0f7ae0d8d 100644
--- a/zephyr/prj_base.conf
+++ b/zephyr/prj_base.conf
@@ -1,3 +1,5 @@
+CONFIG_LEGACY_KERNEL=n
+
 CONFIG_STDOUT_CONSOLE=y
 CONFIG_CONSOLE_HANDLER=y
 CONFIG_UART_CONSOLE_DEBUG_SERVER_HOOKS=y