diff --git a/src/sys/driver.h b/src/sys/driver.h
index e8617d5b..c75daa82 100644
--- a/src/sys/driver.h
+++ b/src/sys/driver.h
@@ -131,11 +131,17 @@ extern __declspec(selectany) int fsp_bp = 1;
     {                                   \
         if (0 != fsp_top_level_irp)     \
         {                               \
-            if (FSRTL_MAX_TOP_LEVEL_IRP_FLAG < (UINT_PTR)fsp_top_level_irp &&\
-                IO_TYPE_IRP == fsp_top_level_irp->Type)\
-                FspIrpSetTopFlags(Irp, FspIrpFlags(fsp_top_level_irp));\
-            else                        \
+            if (FSRTL_MAX_TOP_LEVEL_IRP_FLAG >= (UINT_PTR)fsp_top_level_irp)\
                 FspIrpSetTopFlags(Irp, FspFileNodeAcquireFull);\
+            else if (IO_TYPE_IRP == fsp_top_level_irp->Type &&\
+                0 != IrpSp->FileObject && FspFileNodeIsValid(IrpSp->FileObject->FsContext))\
+            {                           \
+                PIO_STACK_LOCATION fsp_top_level_irpsp =\
+                    IoGetCurrentIrpStackLocation(fsp_top_level_irp);\
+                if (0 != fsp_top_level_irpsp->FileObject &&\
+                    IrpSp->FileObject->FsContext == fsp_top_level_irpsp->FileObject->FsContext)\
+                    FspIrpSetTopFlags(Irp, FspIrpFlags(fsp_top_level_irp));\
+            }                           \
         }                               \
         IoSetTopLevelIrp(Irp);          \
         if (!FspDeviceReference(IrpSp->DeviceObject))\