diff --git a/mm/madvise.c b/mm/madvise.c
index c0370d9b4e23..dbb69400786d 100644
--- a/mm/madvise.c
+++ b/mm/madvise.c
@@ -1389,7 +1389,7 @@ static int madvise_vma_behavior(struct madvise_behavior *madv_behavior)
 		new_flags |= VM_DONTCOPY;
 		break;
 	case MADV_DOFORK:
-		if (new_flags & VM_IO)
+		if (new_flags & VM_SPECIAL)
 			return -EINVAL;
 		new_flags &= ~VM_DONTCOPY;
 		break;