diff --git a/Facepunch.Steamworks/Structs/InventoryDef.cs b/Facepunch.Steamworks/Structs/InventoryDef.cs
index fe93091..8150940 100644
--- a/Facepunch.Steamworks/Structs/InventoryDef.cs
+++ b/Facepunch.Steamworks/Structs/InventoryDef.cs
@@ -98,7 +98,7 @@ namespace Steamworks
 			if ( _properties!= null && _properties.TryGetValue( name, out string val ) )
 				return val;
 
-			uint _ = (uint)Helpers.MaxMemorySize;
+			uint _ = (uint)Helpers.MemoryBufferSize;
 
 			if ( !SteamInventory.Internal.GetItemDefinitionProperty( Id, name, out var vl, ref _ ) )
 				return null;