diff --git a/pandora_client/extract.py b/pandora_client/extract.py
index 4c3b7f5..39ab4ff 100644
--- a/pandora_client/extract.py
+++ b/pandora_client/extract.py
@@ -246,7 +246,7 @@ def video_cmd(video, target, profile, info):
             n = 0
         else:
             n = 1
-        #mix 2 mono channels into stereo(common for fcp dv mov files)
+        # mix 2 mono channels into stereo(common for fcp dv mov files)
         if len(info['audio']) == 2 \
                 and len(filter(None, [a['channels'] == 1 or None for a in info['audio']])) == 2:
             video_settings += [
@@ -261,13 +261,12 @@ def video_cmd(video, target, profile, info):
         if mono_mix:
             ac = 2
         else:
-            ac = info['audio'][0].get('channels', audiochannels)
-        if audiochannels:
-            if ac:
-                ac = min(ac, audiochannels)
-            else:
+            ac = info['audio'][0].get('channels')
+            if not ac:
                 ac = audiochannels
-        audio_settings += ['-ac', str(ac)]
+        if audiochannels:
+            ac = min(ac, audiochannels)
+            audio_settings += ['-ac', str(ac)]
         if audiobitrate:
             audio_settings += ['-ab', audiobitrate]
         if format == 'mp4':