diff --git a/crates/ruma-common/CHANGELOG.md b/crates/ruma-common/CHANGELOG.md
index 2357317d..af2e2fba 100644
--- a/crates/ruma-common/CHANGELOG.md
+++ b/crates/ruma-common/CHANGELOG.md
@@ -35,6 +35,7 @@ Breaking changes:
   * Move relation structs under `events::room::message` to `events::relation`
   * Move common relation structs under `events::room::encrypted` to `events::relation` and remove
     duplicate types
+  * Remove `events::reaction::Relation` and use `events::relation::Annotation` instead
 
 Improvements:
 
diff --git a/crates/ruma-common/src/events/enums.rs b/crates/ruma-common/src/events/enums.rs
index d6419935..1bf83e15 100644
--- a/crates/ruma-common/src/events/enums.rs
+++ b/crates/ruma-common/src/events/enums.rs
@@ -8,9 +8,8 @@ use super::{
     Redact, Relations,
 };
 use crate::{
-    events::relation::{Annotation, Reference},
-    serde::from_raw_json_value,
-    EventId, MilliSecondsSinceUnixEpoch, OwnedRoomId, RoomId, RoomVersionId, TransactionId, UserId,
+    events::relation::Reference, serde::from_raw_json_value, EventId, MilliSecondsSinceUnixEpoch,
+    OwnedRoomId, RoomId, RoomVersionId, TransactionId, UserId,
 };
 
 event_enum! {
@@ -332,15 +331,7 @@ impl AnyMessageLikeEventContent {
                 }))
             }
             #[cfg(feature = "unstable-msc2677")]
-            Self::Reaction(ev) => {
-                use super::reaction;
-
-                let reaction::Relation { event_id, key } = &ev.relates_to;
-                Some(encrypted::Relation::Annotation(Annotation {
-                    event_id: event_id.clone(),
-                    key: key.clone(),
-                }))
-            }
+            Self::Reaction(ev) => Some(encrypted::Relation::Annotation(ev.relates_to.clone())),
             Self::RoomEncrypted(ev) => ev.relates_to.clone(),
             Self::RoomMessage(ev) => ev.relates_to.clone().map(Into::into),
             #[cfg(feature = "unstable-msc1767")]
diff --git a/crates/ruma-common/src/events/reaction.rs b/crates/ruma-common/src/events/reaction.rs
index 33352ad6..be2182da 100644
--- a/crates/ruma-common/src/events/reaction.rs
+++ b/crates/ruma-common/src/events/reaction.rs
@@ -3,7 +3,7 @@
 use ruma_macros::EventContent;
 use serde::{Deserialize, Serialize};
 
-use crate::OwnedEventId;
+use super::relation::Annotation;
 
 /// The payload for a `m.reaction` event.
 ///
@@ -14,48 +14,24 @@ use crate::OwnedEventId;
 pub struct ReactionEventContent {
     /// Information about the related event.
     #[serde(rename = "m.relates_to")]
-    pub relates_to: Relation,
+    pub relates_to: Annotation,
 }
 
 impl ReactionEventContent {
-    /// Creates a new `ReactionEventContent` from the given relation.
+    /// Creates a new `ReactionEventContent` from the given annotation.
     ///
-    /// You can also construct a `ReactionEventContent` from a relation using `From` / `Into`.
-    pub fn new(relates_to: Relation) -> Self {
+    /// You can also construct a `ReactionEventContent` from an annotation using `From` / `Into`.
+    pub fn new(relates_to: Annotation) -> Self {
         Self { relates_to }
     }
 }
 
-impl From<Relation> for ReactionEventContent {
-    fn from(relates_to: Relation) -> Self {
+impl From<Annotation> for ReactionEventContent {
+    fn from(relates_to: Annotation) -> Self {
         Self::new(relates_to)
     }
 }
 
-/// Information about an annotation relation.
-#[derive(Clone, Debug, Deserialize, Serialize)]
-#[cfg_attr(not(feature = "unstable-exhaustive-types"), non_exhaustive)]
-#[serde(tag = "rel_type", rename = "m.annotation")]
-pub struct Relation {
-    /// The event that is being annotated.
-    pub event_id: OwnedEventId,
-
-    /// A string that indicates the annotation being applied.
-    ///
-    /// When sending emoji reactions, this field should include the colourful variation-16 when
-    /// applicable.
-    ///
-    /// Clients should render reactions that have a long `key` field in a sensible manner.
-    pub key: String,
-}
-
-impl Relation {
-    /// Creates a new `Relation` with the given event ID and key.
-    pub fn new(event_id: OwnedEventId, key: String) -> Self {
-        Self { event_id, key }
-    }
-}
-
 #[cfg(test)]
 mod tests {
     use assert_matches::assert_matches;
diff --git a/crates/ruma-common/src/events/relation.rs b/crates/ruma-common/src/events/relation.rs
index c1af79aa..52ae83bb 100644
--- a/crates/ruma-common/src/events/relation.rs
+++ b/crates/ruma-common/src/events/relation.rs
@@ -36,11 +36,17 @@ impl InReplyTo {
 #[derive(Clone, Debug, Deserialize, Serialize)]
 #[cfg(feature = "unstable-msc2677")]
 #[cfg_attr(not(feature = "unstable-exhaustive-types"), non_exhaustive)]
+#[serde(tag = "rel_type", rename = "m.annotation")]
 pub struct Annotation {
     /// The event that is being annotated.
     pub event_id: OwnedEventId,
 
-    /// The annotation.
+    /// A string that indicates the annotation being applied.
+    ///
+    /// When sending emoji reactions, this field should include the colourful variation-16 when
+    /// applicable.
+    ///
+    /// Clients should render reactions that have a long `key` field in a sensible manner.
     pub key: String,
 }