1 files changed, 4 insertions, 0 deletions
diff --git a/src/protocol.h b/src/protocol.h
index db07efb9f9..6639ae2aac 100644
--- a/src/protocol.h
+++ b/src/protocol.h
@@ -37,6 +37,10 @@ public:
     typedef unsigned char MessageStartChars[MESSAGE_START_SIZE];
 
     explicit CMessageHeader(const MessageStartChars& pchMessageStartIn);
+
+    /** Construct a P2P message header from message-start characters, a command and the size of the message.
+     * @note Passing in a `pszCommand` longer than COMMAND_SIZE will result in a run-time assertion error.
+     */
     CMessageHeader(const MessageStartChars& pchMessageStartIn, const char* pszCommand, unsigned int nMessageSizeIn);
 
     std::string GetCommand() const;