diff --git a/reactos/ntoskrnl/io/file.c b/reactos/ntoskrnl/io/file.c
index 9611c4d2e91..0c21f63a05f 100644
--- a/reactos/ntoskrnl/io/file.c
+++ b/reactos/ntoskrnl/io/file.c
@@ -324,6 +324,7 @@ IopSecurityFile(PVOID ObjectBody,
 
     /* Set Stack Parameters */
     StackPtr = IoGetNextIrpStackLocation(Irp);
+    StackPtr->MajorFunction = MajorFunction;
     StackPtr->FileObject = FileObject;
 
     /* Set Parameters */