diff --git a/src/command.cpp b/src/command.cpp
index b008adf1e6..28971e005c 100644
--- a/src/command.cpp
+++ b/src/command.cpp
@@ -250,7 +250,13 @@ void CommandHelperBase::InternalPostResult(CommandCost &res, TileIndex tile, boo
 	}
 }
 
-/** Helper to make a desync log for a command. */
+/**
+ * Helper to make a desync log for a command.
+ * @param cmd The executed command.
+ * @param err_message The error messages of the command.
+ * @param args The encoded arguments of the command.
+ * @param failed Whether the command failed.
+ */
 void CommandHelperBase::LogCommandExecution(Commands cmd, StringID err_message, const CommandDataBuffer &args, bool failed)
 {
 	Debug(desync, 1, "{}: {:08x}; {:02x}; {:02x}; {:08x}; {:08x}; {} ({})", failed ? "cmdf" : "cmd", (uint32_t)TimerGameEconomy::date.base(), TimerGameEconomy::date_fract, _current_company, cmd, err_message, FormatArrayAsHex(args), GetCommandName(cmd));
@@ -326,7 +332,7 @@ std::tuple<bool, bool, bool> CommandHelperBase::InternalExecuteValidateTestAndPr
  * @param cmd Command that was executed.
  * @param cmd_flags Command flags.
  * @param res_test Command result of test run.
- * @param tes_exec Command result of real run.
+ * @param res_exec Command result of real run.
  * @param extra_cash Additional cash required for successful command execution.
  * @param tile Tile of command execution.
  * @param[in,out] cur_company Backup of current company at start of command execution.
diff --git a/src/command_func.h b/src/command_func.h
index 71c321b4aa..4e9cf63e72 100644
--- a/src/command_func.h
+++ b/src/command_func.h
@@ -216,7 +216,6 @@ public:
 
 	/**
 	 * Prepare a command to be send over the network
-	 * @param cmd The command to execute (a CMD_* value)
 	 * @param err_message Message prefix to show on error
 	 * @param company The company that wants to send the command
 	 * @param args Parameters for the command
@@ -459,6 +458,7 @@ struct CommandHelper<Tcmd, Tret(*)(DoCommandFlags, Targs...), false> : CommandHe
 	 * commands that don't take a TileIndex by themselves.
 	 * @param err_message Message prefix to show on error
 	 * @param callback A callback function to call after the command is finished
+	 * @param location Tile location for user feedback.
 	 * @param args Parameters for the command
 	 * @return \c true if the command succeeded, else \c false.
 	 */
diff --git a/src/command_type.h b/src/command_type.h
index 0fa2a313c3..16f1e88ee2 100644
--- a/src/command_type.h
+++ b/src/command_type.h
@@ -38,6 +38,8 @@ public:
 
 	/**
 	 * Creates a command return value with one, or optionally two, error message strings.
+	 * @param msg The error message.
+	 * @param extra_msg Optional secondary error message.
 	 */
 	explicit CommandCost(StringID msg, StringID extra_msg = INVALID_STRING_ID) : cost(0), message(msg), expense_type(INVALID_EXPENSES), success(false), extra_message(extra_msg) {}
 
@@ -57,6 +59,7 @@ public:
 	/**
 	 * Set the 'owner' (the originator) of this error message. This is used to show a company owner's face if you
 	 * attempt an action on something owned by other company.
+	 * @param owner The owner.
 	 */
 	inline void SetErrorOwner(Owner owner)
 	{
@@ -85,6 +88,7 @@ public:
 
 	/**
 	 * Get the originator owner for this error.
+	 * @return The owner.
 	 */
 	inline CompanyID GetErrorOwner() const
 	{
@@ -499,7 +503,6 @@ typedef void CommandCallback(Commands cmd, const CommandCost &result, TileIndex
  *
  * @param cmd The command that was executed
  * @param result The result of the executed command
- * @param tile The tile of the command action
  * @param data Additional data of the command
  * @param result_data Additional returned data from the command
  */