diff --git a/code/modules/mob/living/bot/cleanbot.dm b/code/modules/mob/living/bot/cleanbot.dm
index 3754aa9492..7c54aaf41c 100644
--- a/code/modules/mob/living/bot/cleanbot.dm
+++ b/code/modules/mob/living/bot/cleanbot.dm
@@ -211,6 +211,7 @@
 	target_types += /obj/effect/decal/cleanable/liquid_fuel
 	target_types += /obj/effect/decal/cleanable/mucus
 	target_types += /obj/effect/decal/cleanable/dirt
+	target_types += /obj/effect/decal/cleanable/filth
 
 	if(blood)
 		target_types += /obj/effect/decal/cleanable/blood
diff --git a/code/modules/persistence/filth.dm b/code/modules/persistence/filth.dm
index 2eea824f83..a7aa9e9cd4 100644
--- a/code/modules/persistence/filth.dm
+++ b/code/modules/persistence/filth.dm
@@ -6,6 +6,7 @@
 	random_icon_states = list("mfloor1", "mfloor2", "mfloor3", "mfloor4", "mfloor5", "mfloor6", "mfloor7")
 	color = "#464f33"
 	persistent = TRUE
+	anchored = 1
 
 /obj/effect/decal/cleanable/filth/Initialize()
 	. = ..()
diff --git a/code/modules/persistence/graffiti.dm b/code/modules/persistence/graffiti.dm
index 2780c3b9a4..539b7b7a3b 100644
--- a/code/modules/persistence/graffiti.dm
+++ b/code/modules/persistence/graffiti.dm
@@ -8,6 +8,7 @@
 	blend_mode = BLEND_MULTIPLY
 	color = "#000000"
 	alpha = 120
+	anchored = 1
 
 	var/message
 	var/graffiti_age = 0