diff --git a/artiq/examples/kasli_tester/device_db.py b/artiq/examples/kasli_tester/device_db.py
index 96cd249e8..b0888317f 100644
--- a/artiq/examples/kasli_tester/device_db.py
+++ b/artiq/examples/kasli_tester/device_db.py
@@ -205,6 +205,8 @@ device_db.update(
 )
 
 device_db.update(
+    i2c_switch="i2c_switch0",
+
     ttl_out="ttl4",
     ttl_out_serdes="ttl4",