diff --git a/runelite-client/src/main/java/net/runelite/client/plugins/itemprices/ItemPricesOverlay.java b/runelite-client/src/main/java/net/runelite/client/plugins/itemprices/ItemPricesOverlay.java
index c614665401..887ed04199 100644
--- a/runelite-client/src/main/java/net/runelite/client/plugins/itemprices/ItemPricesOverlay.java
+++ b/runelite-client/src/main/java/net/runelite/client/plugins/itemprices/ItemPricesOverlay.java
@@ -198,7 +198,7 @@ class ItemPricesOverlay extends Overlay
 		}
 		else if (id == ItemID.PLATINUM_TOKEN)
 		{
-			return QuantityFormatter.formatNumber(qty * 1000) + " gp";
+			return QuantityFormatter.formatNumber(qty * 1000L) + " gp";
 		}
 
 		ItemComposition itemDef = itemManager.getItemComposition(id);