diff --git a/mixer.py b/mixer.py
index 29966b2..0d14189 100755
--- a/mixer.py
+++ b/mixer.py
@@ -12,11 +12,11 @@ class Mixer:
     def __init__(self, ip, port):
         self.sock = socket.create_connection((ip, port))
 
-    A_H_ID = [0x00, 0x00, 0x1A]
+    ALLEN_HEATH_ID = [0x00, 0x00, 0x1A]
     QU_MIXER = [0x50, 0x11]
     MAJOR_MINOR = [0x01, 0x00]
     ALL_CALL_MIDI_CHANNEL = [0x7F]
-    SYSEX_HEADER = A_H_ID + QU_MIXER + MAJOR_MINOR
+    SYSEX_HEADER = ALLEN_HEATH_ID + QU_MIXER + MAJOR_MINOR
     SYSEX_ALL_CALL = SYSEX_HEADER + ALL_CALL_MIDI_CHANNEL
 
     def recv(self):