diff --git a/render.py b/render.py
index e18ff67..22a2811 100644
--- a/render.py
+++ b/render.py
@@ -169,7 +169,7 @@ def compose(clips, target=150, base=1024, voice_over=None, options=None):
         volume_rear = '-8.5'
         scene['audio-front']['A2'].append({
             'duration': clip['duration'],
-            'src': front,
+            'src': audio,
             'filter': {'volume': volume_front},
         })
         scene['audio-rear']['A2'].append({