1 files changed, 1 insertions, 0 deletions
diff --git a/cache.h b/cache.h
index 295bf9da5b..70fd8ed462 100644
--- a/cache.h
+++ b/cache.h
@@ -488,6 +488,7 @@ extern int index_name_pos(const struct index_state *, const char *name, int name
 #define ADD_CACHE_SKIP_DFCHECK 4	/* Ok to skip DF conflict checks */
 #define ADD_CACHE_JUST_APPEND 8		/* Append only; tree.c::read_tree() */
 #define ADD_CACHE_NEW_ONLY 16		/* Do not replace existing ones */
+#define ADD_CACHE_KEEP_CACHE_TREE 32	/* Do not invalidate cache-tree */
 extern int add_index_entry(struct index_state *, struct cache_entry *ce, int option);
 extern void rename_index_entry_at(struct index_state *, int pos, const char *new_name);
 extern int remove_index_entry_at(struct index_state *, int pos);