diff --git a/scripts/man.py b/scripts/man.py
index 15dd322..52beafe 100644
--- a/scripts/man.py
+++ b/scripts/man.py
@@ -1,6 +1,8 @@
+import sys
+from hexathon import strip_0x
 from chainlib.cli.man import DocGenerator
 
-
-g = DocGenerator(0xffffffff)
+b = bytes.fromhex(strip_0x(sys.argv[1]))
+g = DocGenerator(int.from_bytes(b, byteorder='little'))
 g.process()
 print(g)