(CNN) -- The Justice Department announced Friday that it is expanding a decades-old definition of rape that it has used in compiling its annual crime statistics.

Now, any kind of nonconsensual penetration, no matter the gender of the attacker or victim, will constitute rape -- meaning that for the first time, attacks on men will be counted.

The crime of rape will be defined as "penetration, no matter how slight, of the vagina or anus with any body part or object, or oral penetration by a sex organ of another person, without the consent of the victim," a Justice Department statement said.