diff --git a/mm/madvise.c b/mm/madvise.c
index 64bb8a2..9113579 100644
--- a/mm/madvise.c
+++ b/mm/madvise.c
@@ -103,7 +103,8 @@
 
 	pgoff = vma->vm_pgoff + ((start - vma->vm_start) >> PAGE_SHIFT);
 	*prev = vma_merge(mm, *prev, start, end, new_flags, vma->anon_vma,
-				vma->vm_file, pgoff, vma_policy(vma));
+			  vma->vm_file, pgoff, vma_policy(vma),
+			  vma->vm_userfaultfd_ctx);
 	if (*prev) {
 		vma = *prev;
 		goto success;