1 files changed, 3 insertions, 1 deletions
diff --git a/alloc.h b/alloc.h
index 3e4e828db4..ba356ed847 100644
--- a/alloc.h
+++ b/alloc.h
@@ -1,9 +1,11 @@
 #ifndef ALLOC_H
 #define ALLOC_H
 
+struct alloc_state;
 struct tree;
 struct commit;
 struct tag;
+struct repository;
 
 void *alloc_blob_node(struct repository *r);
 void *alloc_tree_node(struct repository *r);
@@ -13,7 +15,7 @@ void *alloc_object_node(struct repository *r);
 void alloc_report(struct repository *r);
 unsigned int alloc_commit_index(struct repository *r);
 
-void *allocate_alloc_state(void);
+struct alloc_state *allocate_alloc_state(void);
 void clear_alloc_state(struct alloc_state *s);
 
 #endif