diff --git a/proposals/4186-simplified-sliding-sync.md b/proposals/4186-simplified-sliding-sync.md
index c567e8f27..731fcb7e2 100644
--- a/proposals/4186-simplified-sliding-sync.md
+++ b/proposals/4186-simplified-sliding-sync.md
@@ -335,7 +335,7 @@ An example that returns all the state except the create event:
 | `is_invite` | `bool` | No | Flag which only returns rooms the user is currently invited to. <br/><br/> If unset, both invited and joined rooms are returned. If `False`, no invited rooms are returned. If `True`, only invited rooms are returned. |
 | `room_types` | `[string \| null]` | No | If specified, only rooms where the `m.room.create` event has a `type` matching one of the strings in this array will be returned. <br/><br/> If this field is unset, all rooms are returned regardless of type. This can be used to get the initial set of spaces for an account. For rooms which do not have a room type, use `null` to include them. |
 | `not_room_types` | `[string \| null]` | No | Same as `room_types` but inverted.<br/><br/> This can be used to filter out spaces from the room list. If a type is in both `room_types` and `not_room_types`, then `not_room_types` wins and they are not included in the result. |
-| `room_name_like` | `string` | No | Filter the room name. <br/><br/>Case-insensitive partial matching e.g 'foo' matches 'abFooab'. The term 'like' is inspired by SQL 'LIKE', and the text here is similar to '%foo%'. |
+| `room_name_like` | `string` | No | Filter the room name. <br/><br/>Case-insensitive partial matching e.g 'foo' matches 'abFooab'. The term 'like' is inspired by SQL 'LIKE', and the text here is similar to '%foo%'. <br/><br/> The exact matching semantics is left up to the implementation, for example a server may user full-text search rather than simple matching. |
 | `tags` | `[string]` | No | Filter the room based on its room tags.<br/><br/> If multiple tags are  present, a room can have any one of the listed tags (OR'd). |
 | `not_tags` | `[string]` | No | Filter the room based on its [room tags](https://spec.matrix.org/v1.16/client-server-api/#room-tagging).<br/><br/> Takes priority over `tags`. For example, a room with tags A and B with filters `tags: [A]` `not_tags: [B]` would NOT be included because `not_tags` takes priority over `tags`. This filter is useful if your rooms list does NOT include the list of favourite rooms again. |