diff --git a/OpenSim/Region/Framework/Scenes/SceneObjectPartInventory.cs b/OpenSim/Region/Framework/Scenes/SceneObjectPartInventory.cs
index f7896cfcba..da1b983d49 100644
--- a/OpenSim/Region/Framework/Scenes/SceneObjectPartInventory.cs
+++ b/OpenSim/Region/Framework/Scenes/SceneObjectPartInventory.cs
@@ -47,7 +47,7 @@ namespace OpenSim.Region.Framework.Scenes
 
         private string m_inventoryFileName = String.Empty;
         private byte[] m_inventoryFileData = new byte[0];
-        private int m_inventoryFileNameSerial = 0;
+        private uint m_inventoryFileNameSerial = 0;
 
         private Dictionary<UUID, ArrayList> m_scriptErrors = new Dictionary<UUID, ArrayList>();