diff --git a/input.c b/input.c
index 52fbfbeba..bca89fc4b 100644
--- a/input.c
+++ b/input.c
@@ -18,6 +18,7 @@
 #include <stdio.h>
 #include <fcntl.h>
 #include <errno.h>
+#include <unistd.h>
 #include <linux/input.h>
 #include "input.h"