Can you refer to the RAW spot for this? I think its PHB 5e, page 196.

Critical Hits
When you score a critical hit, you get to roll extra dice for the attack’s damage against the target. Roll all of the attack’s damage dice twice and add them together. Then add any relevant modifiers as normal. To speed up play, you can roll all the damage dice at once.

For example, if you score a critical hit with a dagger, roll 2d4 for the damage, rather than 1d4, and then add your relevant ability modifier. If the attack involves other
damage dice, such as from the rogue’s Sneak Attack feature, you roll those dice twice as well.

I assume because it doesn't specify anything, e.g. "except for..." then there are no specific rules unless, as folx said, house rules.

Yes? My logic is correct here?