diff --git a/magic/Magdir/webassembly b/magic/Magdir/webassembly
index 469b45e2..6c0845ee 100644
--- a/magic/Magdir/webassembly
+++ b/magic/Magdir/webassembly
@@ -10,8 +10,9 @@
 # document describing the binary format.
 # From: Pip Cet <pipcet@gmail.com> and Joel Martin
 
-0	string	\0asm	WebAssembly (wasm) binary module
->4	lelong	=1	version %#x (MVP)
+0	string	\0asm	WebAssembly (wasm) binary
+>4	lelong	>0	version %#x
+>4	lelong	=1	(MVP module)
+>4  lelong  =0x1000d  (component)
 !:mime  application/wasm
 !:ext   wasm
->4	lelong	>1	version %#x