diff --git a/CHANGES.md b/CHANGES.md
index 4e39b72de7..02a05ce905 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -16,6 +16,7 @@ Bugfix 🐛:
  - Fix crash when opening room creation screen from the room filtering screen
  - Fix avatar image disappearing (#777)
  - Fix read marker banner when permalink
+ - Fix joining upgraded rooms (#697)
 
 Translations 🗣:
  -
diff --git a/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/session/room/RoomAPI.kt b/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/session/room/RoomAPI.kt
index c5b3f03d35..6896788de9 100644
--- a/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/session/room/RoomAPI.kt
+++ b/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/session/room/RoomAPI.kt
@@ -212,11 +212,12 @@ internal interface RoomAPI {
     /**
      * Join the given room.
      *
-     * @param roomId  the room id
+     * @param roomIdOrAlias the room id or alias
+     * @param server_name the servers to attempt to join the room through
      * @param params the request body
      */
-    @POST(NetworkConstants.URI_API_PREFIX_PATH_R0 + "rooms/{roomId}/join")
-    fun join(@Path("roomId") roomId: String,
+    @POST(NetworkConstants.URI_API_PREFIX_PATH_R0 + "join/{roomIdOrAlias}")
+    fun join(@Path("roomIdOrAlias") roomIdOrAlias: String,
              @Query("server_name") viaServers: List<String>,
              @Body params: Map<String, String?>): Call<Unit>