diff --git a/mods/ts/maps/arivruns/map.yaml b/mods/ts/maps/arivruns/map.yaml
index 2246df4448..4d10c931a2 100644
--- a/mods/ts/maps/arivruns/map.yaml
+++ b/mods/ts/maps/arivruns/map.yaml
@@ -174,6 +174,9 @@ Actors:
 Smudges:
 
 Rules:
+	World:
+		GlobalLightingPaletteEffect:
+			Ambient: 0.72
 
 Sequences:
 
diff --git a/mods/ts/maps/tread_l/map.yaml b/mods/ts/maps/tread_l/map.yaml
index 5518691410..515929957e 100644
--- a/mods/ts/maps/tread_l/map.yaml
+++ b/mods/ts/maps/tread_l/map.yaml
@@ -1171,6 +1171,9 @@ Actors:
 Smudges:
 
 Rules:
+	World:
+		GlobalLightingPaletteEffect:
+			Ambient: 0.75
 
 Sequences: