1 files changed, 1 insertions, 0 deletions

diff --git a/demandoc.c b/demandoc.c
index 37003ca0..1b31d5da 100644
--- a/demandoc.c
+++ b/demandoc.c
@@ -23,6 +23,7 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
+#include <unistd.h>
 
 #include "man.h"
 #include "mdoc.h"