From the the Enchiridion of Indulgences, #25:
A partial indulgence is granted to the Christian faithful who, in a spirit of filial devotion, devoutly recite any duly approved prayer for the Supreme Pontiff (e.g., the Oremus pro Pontifice):
V. Let us pray for our Pontiff, Pope Benedict.
R. May the Lord preserve him, and give him life, and bless him upon earth, and deliver him not to the will of his enemies.
Our Father. Hail Mary.
Let us pray.
O God, Shepherd and Ruler of all Thy faithful people, look mercifully upon Thy servant Benedict, whom Thou hast chosen as shepherd to preside over Thy Church. Grant him, we beseech Thee, that by his word and example, he may edify those over whom he hath charge, so that together with the flock committed to him, may he attain everlasting life. Through Christ our Lord. Amen.