diff --git a/src/blackcore/fsd/clientresponse.cpp b/src/blackcore/fsd/clientresponse.cpp
index 30233b814..e6d4e6a7d 100644
--- a/src/blackcore/fsd/clientresponse.cpp
+++ b/src/blackcore/fsd/clientresponse.cpp
@@ -40,7 +40,7 @@ namespace BlackCore
             {
                 BlackMisc::CLogMessage(static_cast<ClientResponse *>(nullptr)).warning(u"Wrong number of arguments.");
                 return {};
-            };
+            }
 
             QStringList responseData;
             if (tokens.size() > 3) { responseData = tokens.mid(3); }
diff --git a/src/blackcore/fsd/fsdclient.cpp b/src/blackcore/fsd/fsdclient.cpp
index cb2e4f827..285dffed9 100644
--- a/src/blackcore/fsd/fsdclient.cpp
+++ b/src/blackcore/fsd/fsdclient.cpp
@@ -907,6 +907,10 @@ namespace BlackCore
             // IVAO only
             // Ref: https://github.com/DemonRem/X-IvAP/blob/1b0a14880532a0f5c8fe84be44e462c6892a5596/src/XIvAp/FSDprotocol.h
             m_messageTypeMapping["!R"]  = MessageType::RegistrationInfo;
+
+            // IVAO parts
+            // https://discordapp.com/channels/539048679160676382/695961646992195644/707915838845485187
+            // https://dev.swift-project.org/w/knowhow/simandinterpolation/ivaoparts/
         }
 
         void CFSDClient::handleAtcDataUpdate(const QStringList &tokens)
diff --git a/src/blackcore/fsd/serializer.cpp b/src/blackcore/fsd/serializer.cpp
index f58126859..c453fc332 100644
--- a/src/blackcore/fsd/serializer.cpp
+++ b/src/blackcore/fsd/serializer.cpp
@@ -285,6 +285,7 @@ namespace BlackCore
             if (str.isEmpty()) return ClientQueryType::Unknown;
 
             // valid queries
+            // second part of a $CQ:, e.g. $CQ:DI, $CQ:ATC
             if (str == "ATC")  return ClientQueryType::IsValidATC;
             if (str == "CAPS") return ClientQueryType::Capabilities;
             if (str == "C?")   return ClientQueryType::Com1Freq;