Gas turbine and guide blade for a housing of a gas turbine

A method for manufacturing a guide blade for a housing of a gas turbine, the guide blade including a shroud configuration having a radially outer shroud in the installed state and having a shroud holding device with the aid of which the shroud is securable on the housing;

• the guide blade including a turbine blade extending radially inward from the shroud configuration, the method comprising:
• forming at least one air passage channel in the shroud holding device for permitting a flow passage through the shroud holding device in the installed state of the guide blade,
• the shroud holding device including at least one shroud hook on a side of the shroud opposite the turbine blade, with the aid of which the shroud is secured on the housing, and the shroud hook, which is situated in the area of a profile inlet edge of the turbine blade, including the air passage channel.