diff --git a/board/common/overlay/etc/version b/board/common/overlay/etc/version
index b2ddc0852c..b42047004c 100644
--- a/board/common/overlay/etc/version
+++ b/board/common/overlay/etc/version
@@ -1,4 +1,4 @@
 os_name="thingOS"
 os_short_name="thingos"
 os_prefix="thing"
-os_version="20171008"
+os_version="unknown"