diff --git a/csdr/chain/digimodes.py b/csdr/chain/digimodes.py
index ba849e0f..88e2b528 100644
--- a/csdr/chain/digimodes.py
+++ b/csdr/chain/digimodes.py
@@ -112,7 +112,7 @@ class CwDemodulator(SecondaryDemodulator, SecondarySelectorChain):
 
 
 class RttyDemodulator(SecondaryDemodulator, SecondarySelectorChain):
-    def __init__(self, targetWidth: float, baudRate: float, reverse: boolean):
+    def __init__(self, targetWidth: float, baudRate: float, reverse: bool):
         self.sampleRate = 12000
         self.targetWidth = targetWidth
         self.baudRate = baudRate
diff --git a/owrx/modes.py b/owrx/modes.py
index 6e1ae8e1..e7de647b 100644
--- a/owrx/modes.py
+++ b/owrx/modes.py
@@ -139,8 +139,8 @@ class Modes(object):
             squelch=False,
         ),
         DigitalMode("cwdecoder", "CWDecoder", underlying=["usb"]),
-        DigitalMode("rtty170", "RTTY170", underlying=["usb"]),
-        DigitalMode("rtty450", "RTTY450", underlying=["usb"]),
+        DigitalMode("rtty170", "RTTY-170", underlying=["usb"]),
+        DigitalMode("rtty450", "RTTY-450", underlying=["usb"]),
     ]
 
     @staticmethod