diff --git a/tests/usbprotocol/test_comms.py b/tests/usbprotocol/test_comms.py
index 7839044db9..fd4d8ce02c 100644
--- a/tests/usbprotocol/test_comms.py
+++ b/tests/usbprotocol/test_comms.py
@@ -52,7 +52,7 @@ def test_comms_reset_rx(self):
     TX_QUEUES = (lpp.tx1_q, lpp.tx2_q, lpp.tx3_q)
     lpp.comms_can_reset()
 
-    test_msg = (0x100, fb"{id(lpp.tx1_q}[:8])", 0 )
+    test_msg = (0x100, fb"{id(lpp.tx1_q)[:8]})", 0 )
     for _ in range(100):
       can_pkt_tx = libpanda_py.make_CANPacket(test_msg[0], test_msg[2], test_msg[1], lpp, ffi)
       lpp.can_push(lpp.rx_q, can_pkt_tx)