diff --git a/code/modules/cm_aliens/XenoStructures.dm b/code/modules/cm_aliens/XenoStructures.dm
index ab38e59002d8..c014fbf9c211 100644
--- a/code/modules/cm_aliens/XenoStructures.dm
+++ b/code/modules/cm_aliens/XenoStructures.dm
@@ -578,6 +578,9 @@
 	if(current_mob.stat == DEAD)
 		return FALSE
 
+	if(HAS_TRAIT(current_mob, TRAIT_NESTED))
+		return FALSE
+
 	var/turf/current_turf
 	var/turf/last_turf = loc
 	var/atom/temp_atom = new acid_type()