diff --git a/refs/files-backend.c b/refs/files-backend.c
index de3628f..eb14d12 100644
--- a/refs/files-backend.c
+++ b/refs/files-backend.c
@@ -13,7 +13,8 @@
 #include "../object.h"
 #include "../dir.h"
 #include "../chdir-notify.h"
-#include "worktree.h"
+#include "../worktree.h"
+#include "../wrapper.h"
 
 /*
  * This backend uses the following flags in `ref_update::flags` for