diff --git a/midi_ddsp/midi_ddsp_synthesize.py b/midi_ddsp/midi_ddsp_synthesize.py
index b6e9c98..c1d35da 100644
--- a/midi_ddsp/midi_ddsp_synthesize.py
+++ b/midi_ddsp/midi_ddsp_synthesize.py
@@ -100,7 +100,7 @@ def synthesize_midi(synthesis_generator, expression_generator, midi_file,
           'part_synth_by_model': list of part numbers that are synthesized
             by MIDI-DDSP,
           'midi_control_params': control parameters generated by MIDI-DDSP,
-          'midi_synth_params': synth parameters generated by MIDI-DDSP,,
+          'midi_synth_params': synth parameters generated by MIDI-DDSP,
           'conditioning_df': note expressions predicted by expression generator
             in the format of DataFrame,
   """
@@ -275,7 +275,8 @@ def main():
         output_dir=output_dir,
         sf2_path=args.sf2_path,
         use_fluidsynth=args.use_fluidsynth,
-        display_progressbar=False
+        display_progressbar=False,
+        skip_existing_files=args.skip_existing_files
       )
   elif args.midi_path:
     synthesize_midi(
@@ -287,7 +288,8 @@ def main():
       output_dir=output_dir,
       sf2_path=args.sf2_path,
       use_fluidsynth=args.use_fluidsynth,
-      display_progressbar=True
+      display_progressbar=True,
+      skip_existing_files=args.skip_existing_files
     )
 
 
diff --git a/setup.py b/setup.py
index ea1e5d4..00774f7 100644
--- a/setup.py
+++ b/setup.py
@@ -7,7 +7,7 @@
 
 setuptools.setup(
   name='midi-ddsp',
-  version='0.1.2',
+  version='0.1.3',
   description='Synthesis of MIDI with DDSP',
   long_description=long_description,
   long_description_content_type='text/markdown',