diff --git a/src/Scylla/Http.elm b/src/Scylla/Http.elm
index d1ee4b8..a95bbfd 100644
--- a/src/Scylla/Http.elm
+++ b/src/Scylla/Http.elm
@@ -7,6 +7,7 @@ import Scylla.Login exposing (loginResponseDecoder, Username, Password)
 import Scylla.UserData exposing (userDataDecoder, UserData)
 import Url.Builder
 import Json.Encode exposing (object, string, int, bool, list)
+import Json.Decode as Decode exposing (field)
 import Http exposing (request, emptyBody, jsonBody, fileBody, expectJson, expectWhatever)
 import File exposing (File, name, mime)
 import Url.Builder as Builder
@@ -75,7 +76,7 @@ getHistory apiUrl token room prevBatch = request
     , tracker = Nothing
     }
 
-sendMessage : ApiUrl -> ApiToken -> Int -> RoomId -> (Result Http.Error () -> Msg) -> List (String, Json.Encode.Value) -> Cmd Msg
+sendMessage : ApiUrl -> ApiToken -> Int -> RoomId -> (Result Http.Error String -> Msg) -> List (String, Json.Encode.Value) -> Cmd Msg
 sendMessage apiUrl token transactionId room msg contents = request
     { method = "PUT"
     , headers = authenticatedHeaders token
@@ -84,7 +85,7 @@ sendMessage apiUrl token transactionId room msg contents = request
         ++ "/send/" ++ "m.room.message"
         ++ "/" ++ (String.fromInt transactionId)
     , body = jsonBody <| object contents
-    , expect = expectWhatever msg
+    , expect = expectJson msg (field "event_id" Decode.string)
     , timeout = Nothing
     , tracker = Nothing
     }
diff --git a/src/Scylla/Model.elm b/src/Scylla/Model.elm
index 84094ab..d1df57c 100644
--- a/src/Scylla/Model.elm
+++ b/src/Scylla/Model.elm
@@ -44,7 +44,7 @@ type Msg =
     | ChangeRoute Route -- URL changes
     | ChangeRoomText String String -- Change to a room's input text
     | SendRoomText String -- Sends a message typed into a given room's input
-    | SendRoomTextResponse Int (Result Http.Error ()) -- A send message response finished
+    | SendRoomTextResponse Int (Result Http.Error String) -- A send message response finished
     | ViewportAfterMessage (Result Browser.Dom.Error Viewport) -- A message has been received, try scroll (maybe)
     | ViewportChangeComplete (Result Browser.Dom.Error ()) -- We're done changing the viewport.
     | ReceiveFirstSyncResponse (Result Http.Error SyncResponse) -- HTTP, Sync has finished
@@ -63,8 +63,8 @@ type Msg =
     | FilesSelected RoomId File (List File)
     | ImageUploadComplete RoomId File (Result Http.Error String)
     | FileUploadComplete RoomId File (Result Http.Error String)
-    | SendImageResponse (Result Http.Error ())
-    | SendFileResponse (Result Http.Error ())
+    | SendImageResponse (Result Http.Error String)
+    | SendFileResponse (Result Http.Error String)
     | ReceiveMarkdown MarkdownResponse
     | DismissError Int
     | AttemptReconnect