1 files changed, 2 insertions, 1 deletions
diff --git a/cache-tree.h b/cache-tree.h
index 41c574663a..f7b9cab7ee 100644
--- a/cache-tree.h
+++ b/cache-tree.h
@@ -1,6 +1,7 @@
 #ifndef CACHE_TREE_H
 #define CACHE_TREE_H
 
+#include "cache.h"
 #include "tree.h"
 #include "tree-walk.h"
 
@@ -15,7 +16,7 @@ struct cache_tree_sub {
 
 struct cache_tree {
 	int entry_count; /* negative means "invalid" */
-	unsigned char sha1[20];
+	struct object_id oid;
 	int subtree_nr;
 	int subtree_alloc;
 	struct cache_tree_sub **down;