diff --git a/magic/Magdir/bm b/magic/Magdir/bm
index f30c3688..7e1fb1fd 100644
--- a/magic/Magdir/bm
+++ b/magic/Magdir/bm
@@ -3,9 +3,8 @@
 # $File: bm,v 1.1 2021/02/05 21:54:04 christos Exp $
 # bm:  file(1) magic for "Birtual Machine", cf. https://github.com/tsoding/bm
 
-# marker is 'bm'
-0	string	bm	Birtual Machine
->2	leshort	x	\b, version %d
->4	lelong	x	\b, program size %u
->12	lelong	x	\b, memory size %u
->20	lelong	x	\b, memory capacity %u
+0    string  bm\001\244  Birtual Machine
+>4   leshort x           \b, version %d
+>6   lelong  x           \b, program size %u
+>14  lelong  x           \b, memory size %u
+>22  lelong  x           \b, memory capacity %u