diff --git a/lib/marcel/mime_type/definitions.rb b/lib/marcel/mime_type/definitions.rb
index af750d9..ae70f78 100644
--- a/lib/marcel/mime_type/definitions.rb
+++ b/lib/marcel/mime_type/definitions.rb
@@ -44,6 +44,7 @@
 
 Marcel::MimeType.extend "audio/flac", magic: [[0, 'fLaC']], extensions: %w( flac ), parents: "audio/x-flac"
 Marcel::MimeType.extend "audio/x-wav", magic: [[0, 'RIFF', [[8, 'WAVE']]]], extensions: %w( wav ), parents: "audio/vnd.wav"
+Marcel::MimeType.extend "audio/mpc", magic: [[0, "MPCKSH"]], extensions: %w( mpc ), parents: "application/vnd.mophun.certificate"
 
 Marcel::MimeType.extend "font/ttf", magic: [[0, "\x00\x01\x00\x00"]], extensions: %w( ttf ttc )
 Marcel::MimeType.extend "font/otf", magic: [[0, "OTTO"]], extensions: %w( otf ), parents: "font/ttf"
diff --git a/test/fixtures/name/audio/mpc/musepack.mpc b/test/fixtures/name/audio/mpc/musepack.mpc
new file mode 100644
index 0000000..88e4330
Binary files /dev/null and b/test/fixtures/name/audio/mpc/musepack.mpc differ