diff --git a/src/Driver/Ntvol.h b/src/Driver/Ntvol.h
index 0dbb5556..0672c58c 100644
--- a/src/Driver/Ntvol.h
+++ b/src/Driver/Ntvol.h
@@ -16,7 +16,7 @@ extern volatile BOOL ProbingHostDeviceForWrite;
 NTSTATUS TCOpenVolume ( PDEVICE_OBJECT DeviceObject , PEXTENSION Extension , MOUNT_STRUCT *mount , PWSTR pwszMountVolume , BOOL bRawDevice );
 void TCCloseVolume ( PDEVICE_OBJECT DeviceObject , PEXTENSION Extension );
 NTSTATUS TCCompletion ( PDEVICE_OBJECT DeviceObject , PIRP Irp , PVOID pUserBuffer );
-static NTSTATUS TCSendHostDeviceIoControlRequest ( PDEVICE_OBJECT DeviceObject , PEXTENSION Extension , ULONG IoControlCode , void *OutputBuffer , ULONG OutputBufferSize );
-static NTSTATUS TCSendHostDeviceIoControlRequestEx ( PDEVICE_OBJECT DeviceObject , PEXTENSION Extension , ULONG IoControlCode , void *InputBuffer , ULONG InputBufferSize , void *OutputBuffer , ULONG OutputBufferSize );
+NTSTATUS TCSendHostDeviceIoControlRequest ( PDEVICE_OBJECT DeviceObject , PEXTENSION Extension , ULONG IoControlCode , void *OutputBuffer , ULONG OutputBufferSize );
+NTSTATUS TCSendHostDeviceIoControlRequestEx ( PDEVICE_OBJECT DeviceObject , PEXTENSION Extension , ULONG IoControlCode , void *InputBuffer , ULONG InputBufferSize , void *OutputBuffer , ULONG OutputBufferSize );
 NTSTATUS COMPLETE_IRP ( PDEVICE_OBJECT DeviceObject , PIRP Irp , NTSTATUS IrpStatus , ULONG_PTR IrpInformation );
 static void RestoreTimeStamp ( PEXTENSION Extension );