diff --git a/src/misc_cmd.cpp b/src/misc_cmd.cpp
--- a/src/misc_cmd.cpp
+++ b/src/misc_cmd.cpp
@@ -42,7 +42,7 @@ static_assert((LOAN_INTERVAL & 3) == 0);
  * @param text unused
  * @return the cost of this operation or an error
  */
-CommandCost CmdIncreaseLoan(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
+CommandCost CmdIncreaseLoan(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const std::string &text)
 {
 	Company *c = Company::Get(_current_company);
 
@@ -90,7 +90,7 @@ CommandCost CmdIncreaseLoan(TileIndex ti
  * @param text unused
  * @return the cost of this operation or an error
  */
-CommandCost CmdDecreaseLoan(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
+CommandCost CmdDecreaseLoan(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const std::string &text)
 {
 	Company *c = Company::Get(_current_company);
 
@@ -150,7 +150,7 @@ static void AskUnsafeUnpauseCallback(Win
  * @param text unused
  * @return the cost of this operation or an error
  */
-CommandCost CmdPause(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
+CommandCost CmdPause(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const std::string &text)
 {
 	switch (p1) {
 		case PM_PAUSED_SAVELOAD:
@@ -202,7 +202,7 @@ CommandCost CmdPause(TileIndex tile, DoC
  * @param text unused
  * @return the cost of this operation or an error
  */
-CommandCost CmdMoneyCheat(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
+CommandCost CmdMoneyCheat(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const std::string &text)
 {
 	return CommandCost(EXPENSES_OTHER, -(int32)p1);
 }
@@ -217,7 +217,7 @@ CommandCost CmdMoneyCheat(TileIndex tile
  * @param text unused
  * @return zero cost or an error
  */
-CommandCost CmdChangeBankBalance(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
+CommandCost CmdChangeBankBalance(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const std::string &text)
 {
 	int32 delta = (int32)p1;
 	CompanyID company = (CompanyID) GB(p2, 0, 8);