1 files changed, 2 insertions, 2 deletions

diff --git a/helpers/music_file.py b/helpers/music_file.py
index 6a28d62..b926c64 100644
--- a/helpers/music_file.py
+++ b/helpers/music_file.py
@@ -152,8 +152,8 @@ class MusicFile(Machine):
         with self.music_lock:
             self.current_audio_segment = new_audio_segment
 
-    def set_volume(self, value, add = False):
-        [db_gain, self.volume] = gain(value + int(add) * self.volume, self.volume)
+    def set_volume(self, value, delta = False):
+        [db_gain, self.volume] = gain(value + int(delta) * self.volume, self.volume)
 
         self.set_gain(db_gain)