--- a/src/sampleconf/mimemap
+++ b/src/sampleconf/mimemap
@@ -101,6 +101,7 @@
 .ogg = application/ogg
 # Note: file -i says audio/x-midi, but soft karaoke files are special.
 .kar = audio/x-karaoke
+.mid = audio/x-karaoke
 
 .png = image/png
 .jpg = image/jpeg