1 files changed, 1 insertions, 0 deletions

diff --git a/eqn.c b/eqn.c
index 2ff91b7a..045ec460 100644
--- a/eqn.c
+++ b/eqn.c
@@ -26,6 +26,7 @@
 #include <time.h>
 
 #include "mandoc.h"
+#include "mandoc_aux.h"
 #include "libmandoc.h"
 #include "libroff.h"