diff --git a/pydub/audio_segment.py b/pydub/audio_segment.py
index 3b9e2881..d0600e7a 100644
--- a/pydub/audio_segment.py
+++ b/pydub/audio_segment.py
@@ -924,7 +924,7 @@ def export(self, out_f=None, format='mp3', codec=None, bitrate=None, parameters=
             conversion_command.extend(["-acodec", codec])
 
         if bitrate is not None:
-            conversion_command.extend(["-b:a", bitrate])
+            conversion_command.extend(["-b:a", str(bitrate) if type(bitrate)==int else bitrate])
 
         if parameters is not None:
             # extend arguments with arbitrary set