diff --git a/runelite-client/src/main/java/net/runelite/client/plugins/bank/ContainerCalculation.java b/runelite-client/src/main/java/net/runelite/client/plugins/bank/ContainerCalculation.java
index 8a90d8ccc8..5fc2a423b5 100644
--- a/runelite-client/src/main/java/net/runelite/client/plugins/bank/ContainerCalculation.java
+++ b/runelite-client/src/main/java/net/runelite/client/plugins/bank/ContainerCalculation.java
@@ -51,7 +51,14 @@ class ContainerCalculation
 	ContainerPrices calculate(Item[] items)
 	{
 		// Returns last calculation if inventory hasn't changed
+
+		if (items == null)
+		{
+			return null;
+		}
+
 		final int newHash =  hashItems(items);
+		
 		if (containerPrices != null && hash == newHash)
 		{
 			return containerPrices;