diff --git a/src/driver/fade.cpp b/src/driver/fade.cpp
index fa6c9a5d9..85a940e0c 100644
--- a/src/driver/fade.cpp
+++ b/src/driver/fade.cpp
@@ -26,6 +26,7 @@
 #include <global.h>
 #include <driver/rcinput.h>
 #include <driver/fade.h>
+#include <unistd.h>
 
 #ifdef HAVE_COOL_HARDWARE
 #include <cnxtfb.h>