Former president George H.W. Bush thanked his well-wishers Thursday for their support as he recovers from a recent fall in his home. And to show that he is in good spirits, he posted a picture of himself and made a joke.

Bush, 91, was

after being treated for a fractured bone in his neck that he suffered in the mishap.  Bush's plane comment is a reference to him making parachute jumps to celebrate

. Bush's son Jeb Bush, who is running for president,

his dad tweeted on his own Instagram page. "Glad to see dad's doing better," he wrote.

View this post on Instagram

Glad to see dad's doing better

A post shared by Jeb Bush (@jebbush) on