diff --git a/code/game/objects/items/stacks/rods.dm b/code/game/objects/items/stacks/rods.dm
index 8e1ceaa4280..83ca21a1fc1 100644
--- a/code/game/objects/items/stacks/rods.dm
+++ b/code/game/objects/items/stacks/rods.dm
@@ -18,6 +18,7 @@ GLOBAL_LIST_INIT(rod_recipes, list ( \
 	throw_speed = 3
 	throw_range = 7
 	custom_materials = list(/datum/material/iron=1000)
+	mats_per_stack = 1000
 	max_amount = 50
 	attack_verb = list("hit", "bludgeoned", "whacked")
 	hitsound = 'sound/weapons/gun/general/grenade_launch.ogg'
diff --git a/code/modules/mining/ores_coins.dm b/code/modules/mining/ores_coins.dm
index f93209af641..b1bd77df245 100644
--- a/code/modules/mining/ores_coins.dm
+++ b/code/modules/mining/ores_coins.dm
@@ -17,6 +17,7 @@
 	var/points = 0 //How many points this ore gets you from the ore redemption machine
 	var/refined_type = null //What this ore defaults to being refined into
 	novariants = TRUE // Ore stacks handle their icon updates themselves to keep the illusion that there's more going
+	mats_per_stack = MINERAL_MATERIAL_AMOUNT
 	var/list/stack_overlays
 
 /obj/item/stack/ore/update_icon()