diff --git a/protocol/PROTOCOL.md b/protocol/PROTOCOL.md
index f5af03de9..703b9b3f2 100644
--- a/protocol/PROTOCOL.md
+++ b/protocol/PROTOCOL.md
@@ -441,7 +441,7 @@ restrictive than the following:
 
  - Data: 256 KiB
 
- ### Options Message
+### Options Message
 
  - Number of Options: 64
  - Key: 64 bytes