diff --git a/Window-progress.md b/Window-progress.md
index dc2691f..1aa1cc6 100644
--- a/Window-progress.md
+++ b/Window-progress.md
@@ -19,6 +19,7 @@ The following table shows which windows have been implemented and which haven't.
 |    11 | Error                    | Complete |
 |    12 | Ride                     | Complete | [#469](https://github.com/IntelOrca/OpenRCT2/pull/469)
 |    13 | Ride construction        | Complete | 
+|    13 | Maze Ride construction   | Partial | Most of the Callprocs are not complete. See ride construction for help.
 |    14 | Save prompt              | Complete |
 |    15 | Ride list                | Complete |
 |    16 | Construct ride           | Complete |