diff --git a/builtin/commit.c b/builtin/commit.c
index b09017e..682f47c 100644
--- a/builtin/commit.c
+++ b/builtin/commit.c
@@ -27,6 +27,7 @@
 #include "log-tree.h"
 #include "strbuf.h"
 #include "utf8.h"
+#include "object-name.h"
 #include "parse-options.h"
 #include "string-list.h"
 #include "rerere.h"