diff --git a/mods/d2k/rules/defaults.yaml b/mods/d2k/rules/defaults.yaml
index 689e59978d..11580521eb 100644
--- a/mods/d2k/rules/defaults.yaml
+++ b/mods/d2k/rules/defaults.yaml
@@ -293,7 +293,6 @@
 	AutoTarget:
 	RenderRangeCircle:
 	-GivesBuildableArea:
-	-WithCrumbleOverlay:
 	-WithMakeAnimation:
 	-WithSpriteBody:
 	WithWallSpriteBody:
diff --git a/mods/d2k/sequences/structures.yaml b/mods/d2k/sequences/structures.yaml
index 9b05d56556..c5c8fec686 100644
--- a/mods/d2k/sequences/structures.yaml
+++ b/mods/d2k/sequences/structures.yaml
@@ -30,6 +30,10 @@ medium_gun_turret:
 		Frames: 2621, 2624, 2622, 2632, 2625, 2626, 2636, 2629, 2623, 2633, 2627, 2628, 2634, 2630, 2631, 2635
 		Length: 16
 		Offset: -24,16
+	crumble-overlay: DATA.R8
+		Start: 4321
+		Length: 7
+		Offset: -16,16
 	turret: DATA.R8
 		Start: 2589
 		Facings: -32
@@ -53,6 +57,10 @@ large_gun_turret:
 		Frames: 2621, 2624, 2622, 2632, 2625, 2626, 2636, 2629, 2623, 2633, 2627, 2628, 2634, 2630, 2631, 2635
 		Length: 16
 		Offset: -24,16
+	crumble-overlay: DATA.R8
+		Start: 4321
+		Length: 7
+		Offset: -16,16
 	turret: DATA.R8
 		Start: 2637
 		Facings: -32