diff --git a/yeeshell.c b/yeeshell.c
index b4fbb09..cd9fdbd 100644
--- a/yeeshell.c
+++ b/yeeshell.c
@@ -8,6 +8,7 @@
 #include <dirent.h>
 #include <signal.h>
 #include <errno.h>
+#include <fcntl.h>
 #include "yeeshell.h"
 
 /* record cmdline history */