diff --git a/code/game/objects/items/robot/robot_upgrades_vr.dm b/code/game/objects/items/robot/robot_upgrades_vr.dm
index 2bc402b355..ad2556f810 100644
--- a/code/game/objects/items/robot/robot_upgrades_vr.dm
+++ b/code/game/objects/items/robot/robot_upgrades_vr.dm
@@ -28,4 +28,40 @@
 		return 0
 
 	R.verbs += /mob/living/proc/set_size
-	return 1
\ No newline at end of file
+	return 1
+
+/obj/item/borg/upgrade/bellysizeupgrade
+	name = "robotic Hound process capacity upgrade Module"
+	desc = "Used to upgrade a hound belly capacity. This only affects total volume and such, you won't be able to support more than one patient. Usable once."
+	icon_state = "cyborg_upgrade2"
+	item_state = "cyborg_upgrade"
+	require_module = 1
+
+/obj/item/borg/upgrade/bellysizeupgrade/action(var/mob/living/silicon/robot/R)
+	if(..()) return 0
+
+	if(!R.module || R.dogborg == FALSE)//can work
+		to_chat(R, "Upgrade mounting error!  No suitable hardpoint detected!")
+		to_chat(usr, "There's no mounting point for the module! Try upgrading another model.")
+		return 0
+
+	var/obj/item/device/dogborg/sleeper/T = locate() in R.module
+	if(!T)
+		T = locate() in R.module.contents
+	if(!T)
+		T = locate() in R.module.modules
+	if(!T)
+		to_chat(usr, "<span class='warning'>This robot has had its processor removed!</span>")
+		return 0
+
+	if(T.upgraded_capacity)// == TRUE
+		to_chat(R, "Maximum capacity achieved for this hardpoint!")
+		to_chat(usr, "There's no room for another capacity upgrade!")
+		return 0
+	else
+		var/X = T.max_item_count*2
+		T.max_item_count = X	//I couldn't do T = maxitem*2 for some reason.
+		to_chat(R, "Internal capacity doubled.")
+		to_chat(usr, "Internal capacity doubled.")
+		T.upgraded_capacity = TRUE
+	return 1
diff --git a/code/modules/mob/living/silicon/robot/dogborg/dog_sleeper_vr.dm b/code/modules/mob/living/silicon/robot/dogborg/dog_sleeper_vr.dm
index a39711f891..d8c7cea907 100644
--- a/code/modules/mob/living/silicon/robot/dogborg/dog_sleeper_vr.dm
+++ b/code/modules/mob/living/silicon/robot/dogborg/dog_sleeper_vr.dm
@@ -30,6 +30,7 @@
 	var/synced = FALSE
 	var/startdrain = 500
 	var/max_item_count = 1
+	var/upgraded_capacity = FALSE
 	var/gulpsound = 'sound/vore/gulp.ogg'
 	var/datum/matter_synth/metal = null
 	var/datum/matter_synth/glass = null
diff --git a/code/modules/research/prosfab_designs_vr.dm b/code/modules/research/prosfab_designs_vr.dm
index 02f39bd307..094d036c91 100644
--- a/code/modules/research/prosfab_designs_vr.dm
+++ b/code/modules/research/prosfab_designs_vr.dm
@@ -5,4 +5,11 @@
 	id = "borg_sizeshift_module"
 	req_tech = list(TECH_BLUESPACE = 3, TECH_MATERIAL = 3, TECH_POWER = 2)
 	materials = list(DEFAULT_WALL_MATERIAL = 4000, "glass" = 4000)
-	build_path = /obj/item/borg/upgrade/sizeshift
\ No newline at end of file
+	build_path = /obj/item/borg/upgrade/sizeshift
+
+/datum/design/item/prosfab/robot_upgrade/bellysizeupgrade
+	name = "Size Alteration Module"
+	id = "borg_hound_capacity_module"
+	req_tech = list(TECH_BLUESPACE = 3, TECH_MATERIAL = 3, TECH_POWER = 2)
+	materials = list(DEFAULT_WALL_MATERIAL = 4000, "glass" = 4000)
+	build_path = /obj/item/borg/upgrade/bellysizeupgrade
\ No newline at end of file