diff --git a/basic256/trunk/Settings.h b/basic256/trunk/Settings.h
index af86451..b40741c 100755
--- a/basic256/trunk/Settings.h
+++ b/basic256/trunk/Settings.h
@@ -16,6 +16,7 @@
  **/
 
 
+#include <unistd.h>
 
 #include <QSettings>