diff --git a/code/modules/research/xenobiology/crossbreeding/_mobs.dm b/code/modules/research/xenobiology/crossbreeding/_mobs.dm
index 0d155f2f90f..cb16435e3d1 100644
--- a/code/modules/research/xenobiology/crossbreeding/_mobs.dm
+++ b/code/modules/research/xenobiology/crossbreeding/_mobs.dm
@@ -21,7 +21,7 @@ Slimecrossing Mobs
 	if(remove_on_restore)
 		if(M.mind)
 			M.mind.RemoveSpell(src)
-	..()
+	return ..()
 
 //Transformed slime - Burning Black
 /mob/living/simple_animal/slime/transformedslime