Flip the pancakes.

IHOP says it’s changing its name to IHOb, and it will explain why on Monday.

The 60-year-old franchise’s coy announcement was made on Twitter on Tuesday.

“For 60 pancakin’ years, we’ve been IHOP. Now, we’re flippin’ our name to IHOb. Find out what it could b on 6.11.18. #IHOb”

Speculation is that the “B” will stand for breakfast.

But not everyone is so keen on the change, which set off a twitterati storm.

“someone sue @IHOP for changing their name what kind of anarchy is this #IHOb” tweeted one customer while another mused that the “B” stands for “International House of Bacon?” “This is stupid. I refuse to call it #IHOb — you literally cannot make me.”

A spokeswoman for the company confirmed to The Post that the name change is not a joke.

IHOP parent Dine Brands Global, based in Glendale, Calif., changed its name from Dine Equity in February.