diff --git a/crates/ruma-common/src/events/room/member/change.rs b/crates/ruma-common/src/events/room/member/change.rs
index bb12cd2d..7990bbe3 100644
--- a/crates/ruma-common/src/events/room/member/change.rs
+++ b/crates/ruma-common/src/events/room/member/change.rs
@@ -2,6 +2,7 @@ use super::MembershipState;
 use crate::{MxcUri, UserId};
 
 /// The details of a member event required to calculate a [`MembershipChange`].
+#[derive(Clone, Debug)]
 pub struct MembershipDetails<'a> {
     pub(crate) avatar_url: Option<&'a MxcUri>,
     pub(crate) displayname: Option<&'a str>,