diff --git a/distribution/changelog.txt b/distribution/changelog.txt
index 618fe77217..1744eb5d7f 100644
--- a/distribution/changelog.txt
+++ b/distribution/changelog.txt
@@ -13,6 +13,7 @@
 - Fix: [#24824] The Air Powered Vertical Coaster top section track piece has vertical tunnels (original bug).
 - Fix: [#24825] The River Rapids flat-to-gentle track piece tunnels are incorrect on the gentle side.
 - Fix: [#24826] The Junior Roller Coaster flat-to-steep track piece tunnels are incorrect.
+- Fix: [#24829] The pattern of long grass across tiles is different to RCT1 and RCT2.
 - Fix: [#24831] Park names are being overwritten for custom RCT1 scenarios that use competition id slots.
 
 0.4.24 (2025-07-05)
diff --git a/src/openrct2/object/TerrainSurfaceObject.cpp b/src/openrct2/object/TerrainSurfaceObject.cpp
index 2ba27a7450..e224f1c428 100644
--- a/src/openrct2/object/TerrainSurfaceObject.cpp
+++ b/src/openrct2/object/TerrainSurfaceObject.cpp
@@ -157,7 +157,7 @@ ImageId TerrainSurfaceObject::GetImageId(
     }
 
     TileCoordsXY tilePos(position);
-    uint8_t variation = ((tilePos.x << 1) & 0b10) | (tilePos.y & 0b01);
+    const uint8_t variation = (tilePos.x & 0b01) | ((tilePos.y << 1) & 0b10);
 
     // Look for a matching special
     for (const SpecialEntry& special : entries)