diff --git a/code/modules/research/xenobiology/crossbreeding/_potions.dm b/code/modules/research/xenobiology/crossbreeding/_potions.dm
index 16203cd3462..c33868e0797 100644
--- a/code/modules/research/xenobiology/crossbreeding/_potions.dm
+++ b/code/modules/research/xenobiology/crossbreeding/_potions.dm
@@ -170,6 +170,7 @@ Slimecrossing Potions
 	if (isclothing(clothing))
 		var/obj/item/clothing/clothing_real = clothing
 		clothing_real.clothing_flags |= LAVAPROTECT
+		clothing_real.resistance_flags |= FIRE_PROOF
 	uses--
 	if(uses <= 0)
 		qdel(src)