diff --git a/mods/ra/rules/system.yaml b/mods/ra/rules/system.yaml
index 52a499871a..a03f4b58c3 100644
--- a/mods/ra/rules/system.yaml
+++ b/mods/ra/rules/system.yaml
@@ -210,7 +210,7 @@ World:
 		WaterChance: .2
 	PaletteFromCurrentTileset:
 		Name: terrain
-		ShadowIndex: 4
+		ShadowIndex: 3,4
 	PaletteFromFile@chrome:
 		Name: chrome
 		Filename: temperat.pal