diff --git a/lib/ffmpeg/transcoder.rb b/lib/ffmpeg/transcoder.rb
index 1d27f899..0d6757c8 100644
--- a/lib/ffmpeg/transcoder.rb
+++ b/lib/ffmpeg/transcoder.rb
@@ -121,7 +121,7 @@ def apply_transcoder_options
     def fix_encoding(output)
       output[/test/]
     rescue ArgumentError
-      output.force_encoding("ISO-8859-1")
+      output.force_encoding("UTF-8")
     end
   end
 end