diff --git a/board/czechlight/common/kconfig b/board/czechlight/common/kconfig
index d2196e7..87a0c85 100644
--- a/board/czechlight/common/kconfig
+++ b/board/czechlight/common/kconfig
@@ -59,3 +59,6 @@
 # Watchdog bits
 CONFIG_WATCHDOG_NOWAYOUT=y
 CONFIG_WATCHDOG_SYSFS=y
+
+# protecting /etc
+CONFIG_OVERLAY_FS=y