diff --git a/libntfs-3g/object_id.c b/libntfs-3g/object_id.c
index 8799ddba..059e8822 100644
--- a/libntfs-3g/object_id.c
+++ b/libntfs-3g/object_id.c
@@ -287,7 +287,6 @@ static int remove_object_id_index(ntfs_attr *na, ntfs_index_context *xo,
 		if (size >= (s64)sizeof(GUID)) {
 			memcpy(&key.object_id,
 				&old_attr->object_id,sizeof(GUID));
-			size = sizeof(GUID);
 			if (!ntfs_index_lookup(&key,
 					sizeof(OBJECT_ID_INDEX_KEY), xo)) {
 				entry = (struct OBJECT_ID_INDEX*)xo->entry;
@@ -300,7 +299,6 @@ static int remove_object_id_index(ntfs_attr *na, ntfs_index_context *xo,
 				memcpy(&old_attr->domain_id,
 					&entry->data.domain_id,
 					sizeof(GUID));
-				size = sizeof(OBJECT_ID_ATTR);
 				if (ntfs_index_rm(xo))
 					ret = -1;
 			}