On the very day that Toyota announced cumulative sales of the Prius passed the 3 million mark, Reuters says Toyota may fall short of its goal to sell 250,000 of the Prius in the U.S. this year.

“The 240,000 to 250,000 range is kind of where we’re settling our sights for the Prius family,” Toyota’s U.S. sales chief Bill Fay told the wire.

U.S. sales of all Prius models fell 5.1 percent during the first six months of 2013, while Toyota’s overall U.S. sales rose 6 percent. The Prius usually gets a lift from rising gasoline prices. The reverse is also true.