1 files changed, 1 insertions, 0 deletions
diff --git a/log-tree.c b/log-tree.c
index 143b86fecf..f4b22a60cc 100644
--- a/log-tree.c
+++ b/log-tree.c
@@ -24,6 +24,7 @@
 #include "help.h"
 #include "range-diff.h"
 #include "strmap.h"
+#include "tree.h"
 #include "write-or-die.h"
 
 static struct decoration name_decoration = { "object names" };