diff --git a/sound.py b/sound.py
index 447945b..bf0297f 100644
--- a/sound.py
+++ b/sound.py
@@ -25,11 +25,11 @@ class PCMStream:
         # convert to pcm format
         return bytes(data)
 
-    def change_device(self, num):
+    def change_device(self, device_ID):
         self.clean_up()
 
-        self.stream = sd.RawInputStream(device=num)
-        noisegate_obj.init_stream(num, self.voice_connection, self)
+        self.stream = sd.RawInputStream(device=device_ID)
+        noisegate_obj.init_stream(device_ID, self.voice_connection, self)
 
         self.stream.start()
         noisegate_obj.start()