diff --git a/md5it.py b/md5it.py
index d904b6b..e997316 100755
--- a/md5it.py
+++ b/md5it.py
@@ -5,6 +5,7 @@ import magic
 
 extensions={
     "message_rfc822":"eml",
+    "application_x-7z-compressed":"7z",
     "text_html":"html"
     }