diff --git a/core/convert.py b/core/convert.py
index 32cd749..4abacf2 100644
--- a/core/convert.py
+++ b/core/convert.py
@@ -1,7 +1,7 @@
 import subprocess
 import os
 
-def song(input_song, output_song, avconv, verbose):
+def song(input_song, output_song, avconv=False, verbose=False):
     if not input_song == output_song:
         input_song = input_song.encode('utf-8')
         output_song = output_song.encode('utf-8')
@@ -11,7 +11,8 @@ def song(input_song, output_song, avconv, verbose):
         else:
             convert_with_FFmpeg(input_song, output_song, verbose)
         os.remove('Music/' + input_song)
-    return True
+        return True
+    return False
 
 def convert_with_avconv(input_song, output_song, verbose):
     # different path for windows
diff --git a/test/test_basic.py b/test/test_basic.py
index b9325c6..dc14c38 100644
--- a/test/test_basic.py
+++ b/test/test_basic.py
@@ -33,3 +33,13 @@ def test_download():
     content = spotdl.go_pafy(raw_song)
     download = spotdl.download_song(content)
     assert download == expect_download
+
+def test_convert():
+    expect_convert = True
+    content = spotdl.go_pafy(raw_song)
+    music_file = spotdl.misc.generate_filename(content.title)
+    music_file = spotdl.misc.fix_decoding(music_file)
+    input_song = music_file + spotdl.args.input_ext
+    output_song = music_file + spotdl.args.output_ext
+    convert = spotdl.convert.song(input_song, output_song)
+    assert convert == expect_convert