1 files changed, 1 insertions, 0 deletions
diff --git a/html.c b/html.c
index 17976fd4..0d24e197 100644
--- a/html.c
+++ b/html.c
@@ -31,6 +31,7 @@
 #include <unistd.h>
 
 #include "mandoc.h"
+#include "mandoc_aux.h"
 #include "libmandoc.h"
 #include "out.h"
 #include "html.h"