diff --git a/promisor-remote.h b/promisor-remote.h
index 8200dfc940..76e8d86c7c 100644
--- a/promisor-remote.h
+++ b/promisor-remote.h
@@ -1,6 +1,8 @@
 #ifndef PROMISOR_REMOTE_H
 #define PROMISOR_REMOTE_H
 
+#include "repository.h"
+
 struct object_id;
 
 /*