diff --git a/source/network/fsm.cpp b/source/network/FSM.cpp
similarity index 99%
rename from source/network/fsm.cpp
rename to source/network/FSM.cpp
index 8dcbcb93c5..5203967003 100644
--- a/source/network/fsm.cpp
+++ b/source/network/FSM.cpp
@@ -1,4 +1,4 @@
-/* Copyright (C) 2015 Wildfire Games.
+/* Copyright (C) 2022 Wildfire Games.
  * This file is part of 0 A.D.
  *
  * 0 A.D. is free software: you can redistribute it and/or modify
@@ -17,7 +17,7 @@
 
 // INCLUDES
 #include "precompiled.h"
-#include "fsm.h"
+#include "FSM.h"
 
 // DECLARATIONS
 
diff --git a/source/network/fsm.h b/source/network/FSM.h
similarity index 99%
rename from source/network/fsm.h
rename to source/network/FSM.h
index 4c769c1692..de7696e56d 100644
--- a/source/network/fsm.h
+++ b/source/network/FSM.h
@@ -1,4 +1,4 @@
-/* Copyright (C) 2015 Wildfire Games.
+/* Copyright (C) 2022 Wildfire Games.
  * This file is part of 0 A.D.
  *
  * 0 A.D. is free software: you can redistribute it and/or modify
diff --git a/source/network/NetClient.h b/source/network/NetClient.h
index b9048ed279..37fae11530 100644
--- a/source/network/NetClient.h
+++ b/source/network/NetClient.h
@@ -1,4 +1,4 @@
-/* Copyright (C) 2021 Wildfire Games.
+/* Copyright (C) 2022 Wildfire Games.
  * This file is part of 0 A.D.
  *
  * 0 A.D. is free software: you can redistribute it and/or modify
@@ -18,7 +18,7 @@
 #ifndef NETCLIENT_H
 #define NETCLIENT_H
 
-#include "network/fsm.h"
+#include "network/FSM.h"
 #include "network/NetFileTransfer.h"
 #include "network/NetHost.h"
 #include "scriptinterface/Object.h"
diff --git a/source/network/NetSession.h b/source/network/NetSession.h
index 40d1050557..4b3a4d130a 100644
--- a/source/network/NetSession.h
+++ b/source/network/NetSession.h
@@ -1,4 +1,4 @@
-/* Copyright (C) 2020 Wildfire Games.
+/* Copyright (C) 2022 Wildfire Games.
  * This file is part of 0 A.D.
  *
  * 0 A.D. is free software: you can redistribute it and/or modify
@@ -19,7 +19,7 @@
 #define NETSESSION_H
 
 #include "lib/external_libraries/enet.h"
-#include "network/fsm.h"
+#include "network/FSM.h"
 #include "network/NetFileTransfer.h"
 #include "network/NetHost.h"
 #include "ps/CStr.h"