diff --git a/protocol/network/messages.md b/protocol/network/messages.md
index 67aa340..291f818 100644
--- a/protocol/network/messages.md
+++ b/protocol/network/messages.md
@@ -84,7 +84,7 @@ The message payload is defined by the message type.
 
 # Node Specific Behavior
 
-## Bitcoin ABC
+## Bitcoin Unlimited
 
 ### Payload Checksum