diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index 891b9b7568..081118f8de 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -95,6 +95,7 @@ add_files(
     command.cpp
     command_aux.h
     command_func.h
+    command_log.h
     command_type.h
     company_base.h
     company_cmd.cpp
diff --git a/src/command_func.h b/src/command_func.h
index c3a4984833..30e8cc18c7 100644
--- a/src/command_func.h
+++ b/src/command_func.h
@@ -82,9 +82,6 @@ static inline DoCommandFlag CommandFlagsToDCFlags(CommandFlags cmd_flags)
 	return flags;
 }
 
-void ClearCommandLog();
-char *DumpCommandLog(char *buffer, const char *last, std::function<char *(char *)> flush);
-
 void ExecuteCommandQueue();
 void ClearCommandQueue();
 void EnqueueDoCommandP(CommandContainer cmd);
diff --git a/src/command_log.h b/src/command_log.h
new file mode 100644
index 0000000000..31d13ba086
--- /dev/null
+++ b/src/command_log.h
@@ -0,0 +1,18 @@
+/*
+ * This file is part of OpenTTD.
+ * OpenTTD is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, version 2.
+ * OpenTTD is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ * See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with OpenTTD. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+/** @file command_log.h Functions related to command logging. */
+
+#ifndef COMMAND_LOG_H
+#define COMMAND_LOG_H
+
+#include <functional>
+
+void ClearCommandLog();
+char *DumpCommandLog(char *buffer, const char *last, std::function<char *(char *)> flush);
+
+#endif /* COMMAND_LOG_H */
diff --git a/src/console_cmds.cpp b/src/console_cmds.cpp
index bda0c151aa..37a0f7b6b0 100644
--- a/src/console_cmds.cpp
+++ b/src/console_cmds.cpp
@@ -21,6 +21,7 @@
 #include "network/network_client.h"
 #include "network/network_server.h"
 #include "command_func.h"
+#include "command_log.h"
 #include "settings_func.h"
 #include "fios.h"
 #include "fileio_func.h"
diff --git a/src/crashlog.cpp b/src/crashlog.cpp
index 36b69a32f7..6d8db91c52 100644
--- a/src/crashlog.cpp
+++ b/src/crashlog.cpp
@@ -30,6 +30,7 @@
 #include "news_gui.h"
 #include "scope_info.h"
 #include "command_func.h"
+#include "command_log.h"
 #include "thread.h"
 #include "debug_desync.h"
 #include "event_logs.h"
diff --git a/src/misc.cpp b/src/misc.cpp
index ee82be1c70..31a1f0fab1 100644
--- a/src/misc.cpp
+++ b/src/misc.cpp
@@ -35,6 +35,7 @@
 #include "viewport_func.h"
 #include "bridge_signal_map.h"
 #include "command_func.h"
+#include "command_log.h"
 #include "zoning.h"
 #include "cargopacket.h"
 #include "tbtr_template_vehicle_func.h"
diff --git a/src/openttd.cpp b/src/openttd.cpp
index 4dcad739d6..e7730c9439 100644
--- a/src/openttd.cpp
+++ b/src/openttd.cpp
@@ -23,6 +23,7 @@
 #include "sl/saveload.h"
 #include "company_func.h"
 #include "command_func.h"
+#include "command_log.h"
 #include "news_func.h"
 #include "fios.h"
 #include "load_check.h"