diff --git a/mods/ts/rules/defaults.yaml b/mods/ts/rules/defaults.yaml
index d04ce58818..e506ed8b9c 100644
--- a/mods/ts/rules/defaults.yaml
+++ b/mods/ts/rules/defaults.yaml
@@ -867,6 +867,8 @@
 	EditorOnlyTooltip:
 		Name: Railway
 	AutoSelectionSize:
+	ChangesTerrain:
+		TerrainType: Rail
 
 ^Tunnel:
 	Inherits: ^TerrainOverlay