diff --git a/src/settings.cpp b/src/settings.cpp
--- a/src/settings.cpp
+++ b/src/settings.cpp
@@ -1720,7 +1720,7 @@ void IntSettingDesc::ChangeValue(const v
  * @return the cost of this operation or an error
  * @see _settings
  */
-CommandCost CmdChangeSetting(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
+CommandCost CmdChangeSetting(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const std::string &text)
 {
 	const SettingDesc *sd = GetSettingDescription(p1);
 
@@ -1747,7 +1747,7 @@ CommandCost CmdChangeSetting(TileIndex t
  * @param text unused
  * @return the cost of this operation or an error
  */
-CommandCost CmdChangeCompanySetting(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
+CommandCost CmdChangeCompanySetting(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const std::string &text)
 {
 	const SettingDesc *sd = GetCompanySettingDescription(p1);
 	if (sd == nullptr) return CMD_ERROR;