diff --git a/src/reco.py b/src/reco.py
index db117f0c..fb16599d 100644
--- a/src/reco.py
+++ b/src/reco.py
@@ -24,7 +24,7 @@ def main(args):
     batch_size = int(args.batch_size)
     source = args.source
     channels = int(args.channels)
-    waves = get_wav_list(col, batch_size, source)
+    waves = get_wav_list(col, source, batch_size)
     uris = [w for w in waves]
     uris = list(map(lambda x: dict(x, **{'channels': channels}), uris))