1 files changed, 1 insertions, 0 deletions

diff --git a/tree.c b/tree.c
index bf498a87..cc09cbfd 100644
--- a/tree.c
+++ b/tree.c
@@ -23,6 +23,7 @@
 #include <stdlib.h>
 #include <time.h>
 
+#include "mandoc.h"
 #include "mdoc.h"
 #include "man.h"
 #include "main.h"