diff --git a/matrix-sdk-android/src/main/java/im/vector/matrix/android/api/session/events/model/RelationType.kt b/matrix-sdk-android/src/main/java/im/vector/matrix/android/api/session/events/model/RelationType.kt
index 56d4801c45..0f5421a05a 100644
--- a/matrix-sdk-android/src/main/java/im/vector/matrix/android/api/session/events/model/RelationType.kt
+++ b/matrix-sdk-android/src/main/java/im/vector/matrix/android/api/session/events/model/RelationType.kt
@@ -17,7 +17,7 @@ package im.vector.matrix.android.api.session.events.model
 
 
 /**
- * Constants defining known event relation types from Matrix specifications.
+ * Constants defining known event relation types from Matrix specifications
  */
 object RelationType {
 
@@ -25,7 +25,7 @@ object RelationType {
     const val ANNOTATION = "m.annotation"
     /** Lets you define an event which replaces an existing event.*/
     const val REPLACE = "m.replace"
-    /** ets you define an event which references an existing event.*/
+    /** Lets you define an event which references an existing event.*/
     const val REFERENCE = "m.reference"
 
 }
\ No newline at end of file
diff --git a/matrix-sdk-android/src/main/java/im/vector/matrix/android/api/session/room/model/relation/RelationContent.kt b/matrix-sdk-android/src/main/java/im/vector/matrix/android/api/session/room/model/relation/RelationContent.kt
index 9bbdf5ab97..5f89a482d0 100644
--- a/matrix-sdk-android/src/main/java/im/vector/matrix/android/api/session/room/model/relation/RelationContent.kt
+++ b/matrix-sdk-android/src/main/java/im/vector/matrix/android/api/session/room/model/relation/RelationContent.kt
@@ -16,7 +16,10 @@
 
 package im.vector.matrix.android.api.session.room.model.relation
 
+import im.vector.matrix.android.api.session.events.model.RelationType
+
 interface RelationContent {
+    /** See [RelationType] for known possible values */
     val type: String?
     val eventId: String?
     val inReplyTo: ReplyToContent?