diff --git a/merge-ort.c b/merge-ort.c
index 51b049358e..ba3ce8d5d5 100644
--- a/merge-ort.c
+++ b/merge-ort.c
@@ -17,7 +17,9 @@
 #include "cache.h"
 #include "merge-ort.h"
 
+#include "blob.h"
 #include "cache-tree.h"
+#include "commit-reach.h"
 #include "diff.h"
 #include "diffcore.h"
 #include "dir.h"