diff --git a/code/game/objects/items/pet_carrier.dm b/code/game/objects/items/pet_carrier.dm
index a60aa02ce1..4affc99a4b 100644
--- a/code/game/objects/items/pet_carrier.dm
+++ b/code/game/objects/items/pet_carrier.dm
@@ -256,7 +256,7 @@
 		occupant_gas_supply[/datum/gas/oxygen] = 0.0064 //make sure it has some gas in so it isn't depressurized
 		occupant_gas_supply.set_temperature(animal.minbodytemp) //simple animals only care about temperature/pressure when their turf isnt a location
 	else
-		if(ishuman(occupant)) //humans require resistance to cold/heat and living in no air while inside, and lose this when outside
+		if(iscarbon(occupant)) //humans require resistance to cold/heat and living in no air while inside, and lose this when outside
 			ADD_TRAIT(occupant, TRAIT_RESISTCOLD, "bluespace_container_cold_resist")
 			ADD_TRAIT(occupant, TRAIT_RESISTHEAT, "bluespace_container_heat_resist")
 			ADD_TRAIT(occupant, TRAIT_NOBREATH, "bluespace_container_no_breath")