diff --git a/data/hfs.map b/data/hfs.map
index b9ade801..0d8b4cfc 100644
--- a/data/hfs.map
+++ b/data/hfs.map
@@ -1,5 +1,6 @@
 # ext.  xlate  creator  type    comment
 .hqx    Ascii  'BnHx'   'TEXT'  "BinHex file"
+.sit    Raw    'SIT!'   'SITD'  "StuffIT Expander"
 .mov    Raw    'TVOD'   'MooV'  "QuickTime Movie"
 .deb    Raw    'Debn'   'bina'  "Debian package"
 .bin    Raw    'ddsk'   'DDim'  "Floppy or ramdisk image"