diff --git a/network/ndis/netvmini/6x/rssv2.c b/network/ndis/netvmini/6x/rssv2.c
index 1f8efb0e9..3f185c8a6 100644
--- a/network/ndis/netvmini/6x/rssv2.c
+++ b/network/ndis/netvmini/6x/rssv2.c
@@ -210,7 +210,7 @@ Return Value:
 
 --*/
 {
-    UINT8 index;
+    ULONG index;
     PNDIS_RSS_PROCESSOR processor;
 
     for (index = 0; 
@@ -222,7 +222,7 @@ Return Value:
         if ((processor->ProcNum.Group == ProcessorNumber.Group) && 
             (processor->ProcNum.Number == ProcessorNumber.Number))
         {
-            return index;
+            return (UINT8)index;
         }
     }