diff --git a/src/gui/keybind_setup.cpp b/src/gui/keybind_setup.cpp
index 91897db3f..01b040773 100644
--- a/src/gui/keybind_setup.cpp
+++ b/src/gui/keybind_setup.cpp
@@ -33,6 +33,8 @@
 #include <config.h>
 #endif
 
+#include <unistd.h>
+
 #ifdef HAVE_COOLSTREAM_NEVIS_IR_H
 /* define constants instead of #ifdef'ing the corresponding code.
  * the compiler will optimize it away anyway, but the syntax is
diff --git a/src/gui/network_service.cpp b/src/gui/network_service.cpp
index 7902d6018..fd1d68ba9 100644
--- a/src/gui/network_service.cpp
+++ b/src/gui/network_service.cpp
@@ -24,6 +24,7 @@
 #include <config.h>
 #endif
 
+#include <unistd.h>
 #include <global.h>
 #include <neutrino.h>
 
diff --git a/src/gui/osdlang_setup.cpp b/src/gui/osdlang_setup.cpp
index 0b7c31b16..9346eeb8a 100644
--- a/src/gui/osdlang_setup.cpp
+++ b/src/gui/osdlang_setup.cpp
@@ -33,6 +33,7 @@
 #include <config.h>
 #endif
 
+#include <unistd.h>
 
 #include "osdlang_setup.h"