1 files changed, 1 insertions, 0 deletions
diff --git a/tree.c b/tree.c
index 410e3b477e..76a6534f67 100644
--- a/tree.c
+++ b/tree.c
@@ -1,5 +1,6 @@
 #include "cache.h"
 #include "cache-tree.h"
+#include "hex.h"
 #include "tree.h"
 #include "object-store.h"
 #include "blob.h"