diff --git a/maps/groundbase/gb-z1.dmm b/maps/groundbase/gb-z1.dmm
index 442a665c9b..03fd51c9ec 100644
--- a/maps/groundbase/gb-z1.dmm
+++ b/maps/groundbase/gb-z1.dmm
@@ -5600,7 +5600,9 @@
 	},
 /area/groundbase/command/tcomms)
 "pp" = (
-/mob/living/simple_mob/vore/alienanimals/catslug/engislug,
+/mob/living/simple_mob/vore/alienanimals/catslug/custom/engislug{
+	ghostjoin = 1
+	},
 /obj/structure/cable/yellow{
 	icon_state = "1-2"
 	},
@@ -17460,7 +17462,9 @@
 	},
 /area/maintenance/groundbase/level1/nwtunnel)
 "VH" = (
-/mob/living/simple_mob/vore/alienanimals/catslug/gatslug,
+/mob/living/simple_mob/vore/alienanimals/catslug/custom/gatslug{
+	ghostjoin = 1
+	},
 /obj/machinery/atmospherics/pipe/simple/hidden/supply{
 	dir = 4
 	},
diff --git a/maps/groundbase/gb-z2.dmm b/maps/groundbase/gb-z2.dmm
index c51731a500..1720b53074 100644
--- a/maps/groundbase/gb-z2.dmm
+++ b/maps/groundbase/gb-z2.dmm
@@ -807,7 +807,7 @@
 /turf/simulated/floor/tiled,
 /area/groundbase/cargo/office)
 "cq" = (
-/mob/living/simple_mob/vore/alienanimals/catslug/scienceslug{
+/mob/living/simple_mob/vore/alienanimals/catslug/custom/scienceslug{
 	ghostjoin = 1
 	},
 /turf/simulated/floor/tiled,
@@ -2199,7 +2199,7 @@
 /turf/simulated/floor/tiled,
 /area/groundbase/science/robotics)
 "gL" = (
-/mob/living/simple_mob/vore/alienanimals/catslug/cargoslug{
+/mob/living/simple_mob/vore/alienanimals/catslug/custom/cargoslug{
 	ghostjoin = 1
 	},
 /turf/simulated/floor/tiled,
@@ -12954,7 +12954,7 @@
 /turf/simulated/floor/tiled/steel_ridged,
 /area/groundbase/medical/triage)
 "Np" = (
-/mob/living/simple_mob/vore/alienanimals/catslug/medislug{
+/mob/living/simple_mob/vore/alienanimals/catslug/custom/medislug{
 	ghostjoin = 1
 	},
 /obj/structure/cable/yellow{