diff --git a/board/czechlight/common/busybox-config b/board/czechlight/common/busybox-config
index db05ae0..b19cfd3 100644
--- a/board/czechlight/common/busybox-config
+++ b/board/czechlight/common/busybox-config
@@ -1,3 +1,6 @@
 CONFIG_PING6=y
 CONFIG_TRACEROUTE6=y
 CONFIG_FEATURE_SHOW_THREADS=y
+
+# rauc
+CONFIG_FEATURE_TAR_AUTODETECT=y