diff --git a/reactos/drivers/network/ndis/ndis/misc.c b/reactos/drivers/network/ndis/ndis/misc.c
index d0c43912667..b34e9bb2d03 100644
--- a/reactos/drivers/network/ndis/ndis/misc.c
+++ b/reactos/drivers/network/ndis/ndis/misc.c
@@ -17,7 +17,7 @@ NdisInterlockedAddUlong (
     IN  ULONG           Increment,
     IN  PNDIS_SPIN_LOCK SpinLock)
 {
-   ExInterlockedAddUlong ( Addend, Increment, (PKSPIN_LOCK)SpinLock );
+   ExInterlockedAddUlong ( Addend, Increment, &SpinLock->SpinLock );
 }
 
 
@@ -32,7 +32,7 @@ NdisInterlockedInsertHeadList(
     IN  PLIST_ENTRY     ListEntry,
     IN  PNDIS_SPIN_LOCK SpinLock)
 {
-  return ExInterlockedInsertHeadList ( ListHead, ListEntry, (PKSPIN_LOCK)SpinLock );
+  return ExInterlockedInsertHeadList ( ListHead, ListEntry, &SpinLock->SpinLock );
 }
 
 
@@ -47,7 +47,7 @@ NdisInterlockedInsertTailList(
     IN  PLIST_ENTRY     ListEntry,
     IN  PNDIS_SPIN_LOCK SpinLock)
 {
-  return ExInterlockedInsertTailList ( ListHead, ListEntry, (PKSPIN_LOCK)SpinLock );
+  return ExInterlockedInsertTailList ( ListHead, ListEntry, &SpinLock->SpinLock );
 }
 
 
@@ -61,7 +61,7 @@ NdisInterlockedRemoveHeadList(
     IN  PLIST_ENTRY     ListHead,
     IN  PNDIS_SPIN_LOCK SpinLock)
 {
-  return ExInterlockedRemoveHeadList ( ListHead, (PKSPIN_LOCK)SpinLock );
+  return ExInterlockedRemoveHeadList ( ListHead, &SpinLock->SpinLock );
 }
 
 typedef struct _NDIS_HANDLE_OBJECT