diff --git a/workspace_tools/synch.py b/workspace_tools/synch.py
index cfc17212d9..9f11de8f07 100644
--- a/workspace_tools/synch.py
+++ b/workspace_tools/synch.py
@@ -67,6 +67,7 @@ OFFICIAL_CODE = (
     ("UbloxUSBModem", "net/cellular/UbloxUSBModem"),
     ("UbloxModemHTTPClientTest", ["tests/net/cellular/http/common", "tests/net/cellular/http/ubloxusb"]),
     ("UbloxModemSMSTest", ["tests/net/cellular/sms/common", "tests/net/cellular/sms/ubloxusb"]),
+    ("FatFileSystem", "fs/fat"),
 )