diff --git a/source/usage/nfc.md b/source/usage/nfc.md
index 52372fa..f420c4c 100644
--- a/source/usage/nfc.md
+++ b/source/usage/nfc.md
@@ -43,7 +43,7 @@ Examples:
 It contains a token that can be used by the home server of the card owner to identify the card owner. The format of the token MUST NOT be relied on by any party except the home server.
 
 ## FabFire Specification
-Application Identifier (AID): 0x464142
+Application Identifier (AID): `0x464142`
 
 ## NFC Implementation
 C# - https://gitlab.com/fabinfra/fabaccess/nfc