diff --git a/Messages.md b/Messages.md
index ee69bee..7aa47b0 100644
--- a/Messages.md
+++ b/Messages.md
@@ -93,16 +93,21 @@ the allowed values of `<RequestType>` and the implication for the rest of
 the corresponding fields, look at the documentation of the specific requests.
 
 ### SetPlayerTickR
-This request is used to set a player to a specific Tick. If the Player is an
-`UnknownPlayer` it will be added.
+This request is used to set a player to a specific Tick.
 ```
 {
 "requestType" : "SetPlayerTickR",
-"player" : <Player>
+"player" : <KnownPlayer>
 "tick" : <Tick>
 }
 ```
 
+### AddPlayerTickR
+```
+"requestType" : "AddPlayerTickR",
+"player" : <UnknownPlayer>
+"tick" : <Tick>
+```
 ### InitializeTickLeisteR
 
 Initialize a new TickLeiste, either one saved on the client side,