diff --git a/nfc2klipper.cfg b/nfc2klipper.cfg
index 7d5bed4..8a186b6 100644
--- a/nfc2klipper.cfg
+++ b/nfc2klipper.cfg
@@ -13,7 +13,7 @@ web_port = 5001
 [nfc]
 # Which NFC reader to use, see
 # https://nfcpy.readthedocs.io/en/latest/topics/get-started.html#open-a-local-device
-nfc-device = "ttyAMA0"
+nfc-device = "tty:AMA0"
 
 [spoolman]
 # URL for the spoolman installation