A jailed jihadi who urged his fellow extremists to target the UK’s Prince George was stabbed by another inmate with a makeshift knife, The Sun reported.

ISIS-linked Husnain Rashid, 34, was left with a gash on his right ear after the Wednesday attack at Manchester’s Strangeways jail.

He was notorious for sharing images of then 4-year-old Prince George, who is third in line to the British throne, next to a silhouette of a jihadi fighter and the message, “Even the royal family will not be left alone.”

An unknown fellow inmate reportedly attacked him with a shiv made from a toothbrush.

“Nobody likes him or what he did, like threatening that young royal lad… We don’t tolerate that kind of thing in Strangeways,” a jail source told The Sun.

Rashid pleaded guilty in June to three counts of engaging in preparation of terrorist attacks and got three life sentences. He also urged militants to inject ice cream and fruit with poison.

The Royal Family is stepping up protection for the boy prince. More security will be added at his school and when he travels around town with his mother and grandmother.