diff --git a/code/modules/mob/living/carbon/alien/humanoid/queen.dm b/code/modules/mob/living/carbon/alien/humanoid/queen.dm
index 342abf17a03..19ce23f59ce 100644
--- a/code/modules/mob/living/carbon/alien/humanoid/queen.dm
+++ b/code/modules/mob/living/carbon/alien/humanoid/queen.dm
@@ -82,7 +82,7 @@
 /obj/effect/proc_holder/alien/royal/queen/promote
 	name = "Create Royal Parasite"
 	desc = "Produce a royal parasite to grant one of your children the honor of being your Praetorian."
-	plasma_cost = 500 //Plasma cost used on promotion, not spawning the parasite.
+	plasma_cost = 450 //Plasma cost used on promotion, not spawning the parasite.
 
 	action_icon_state = "alien_queen_promote"
 
@@ -125,8 +125,8 @@
 
 	var/mob/living/carbon/alien/humanoid/A = M
 	if(A.stat == CONSCIOUS && A.mind && A.key)
-		if(!A.usePlasma(500))
-			user << "<span class='noticealien'>You must have 500 plasma stored to use this!</span>"
+		if(!A.usePlasma(450))
+			user << "<span class='noticealien'>You must have 450 plasma stored to use this!</span>"
 			return
 
 		A << "<span class='noticealien'>The queen has granted you a promotion to Praetorian!</span>"