Earlier this month, we found out that Disney is moving the Star Wars comics To Marvel next year and now it looks like the two Disney children are already having some sibling rivalry.

On Wednesday night, the official Star Wars Twitter account held an “AskStarWars” Twitter event where fans could ask questions. The official Marvel Twitter account decided to get in on the action by asking if they could borrow some lightsabers, to which Star Wars responded that they’d trade them for Mjolnir, Thor’s mighty hammer.

This set off a geeky fun rivalry on Twitter between the two Disney-owned properties. You can read the entire Twitter interaction here below.

[@StarWars and @Marvel Storify via TIME.]

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