diff --git a/drivers/filesystems/ntfs/mft.c b/drivers/filesystems/ntfs/mft.c
index 5d61f534ddf..ae2a6cc2baf 100644
--- a/drivers/filesystems/ntfs/mft.c
+++ b/drivers/filesystems/ntfs/mft.c
@@ -177,7 +177,6 @@ SetAttributeDataLength(PFILE_OBJECT FileObject,
                        PNTFS_ATTR_CONTEXT AttrContext,
                        ULONG AttrOffset,
                        PFILE_RECORD_HEADER FileRecord,
-                       PDEVICE_EXTENSION DeviceExt,
                        PLARGE_INTEGER DataSize)
 {
     if (AttrContext->Record.IsNonResident)
diff --git a/drivers/filesystems/ntfs/ntfs.h b/drivers/filesystems/ntfs/ntfs.h
index 6ff5b838003..4435b4866e6 100644
--- a/drivers/filesystems/ntfs/ntfs.h
+++ b/drivers/filesystems/ntfs/ntfs.h
@@ -772,7 +772,6 @@ SetAttributeDataLength(PFILE_OBJECT FileObject,
                        PNTFS_ATTR_CONTEXT AttrContext,
                        ULONG AttrOffset,
                        PFILE_RECORD_HEADER FileRecord,
-                       PDEVICE_EXTENSION DeviceExt,
                        PLARGE_INTEGER DataSize);
 
 ULONG
diff --git a/drivers/filesystems/ntfs/rw.c b/drivers/filesystems/ntfs/rw.c
index 9d111896314..5afb87e9e60 100644
--- a/drivers/filesystems/ntfs/rw.c
+++ b/drivers/filesystems/ntfs/rw.c
@@ -422,7 +422,7 @@ NTSTATUS NtfsWriteFile(PDEVICE_EXTENSION DeviceExt,
             AllocationSize = ROUND_UP(DataSize.QuadPart, Fcb->Vcb->NtfsInfo.BytesPerCluster);
 
             // set the attribute data length
-            Status = SetAttributeDataLength(FileObject, Fcb, DataContext, AttributeOffset, FileRecord, DeviceExt, &DataSize);
+            Status = SetAttributeDataLength(FileObject, Fcb, DataContext, AttributeOffset, FileRecord, &DataSize);
             
             if (!NT_SUCCESS(Status))
             {