diff --git a/src/classlib/session.cc b/src/classlib/session.cc
index 65fa3d4..f032b33 100644
--- a/src/classlib/session.cc
+++ b/src/classlib/session.cc
@@ -38,10 +38,6 @@
 	#include <syslog.h>
  #endif // HAVE_SYSLOG
 
- #ifndef ETIMEDOUT
-	#define ETIMEDOUT 1238
- #endif // !ETIMEDOUT
-
 /*--[ Implement ]--------------------------------------------------------------------------------------------------*/
 
  namespace PW3270_NAMESPACE
diff --git a/src/include/pw3270/class.h b/src/include/pw3270/class.h
index 874df7e..85f4802 100644
--- a/src/include/pw3270/class.h
+++ b/src/include/pw3270/class.h
@@ -38,6 +38,7 @@
  #endif // WIN32
 
  #include <exception>
+ #include <errno.h>
  #include <lib3270/config.h>
  #include <lib3270.h>
  #include <lib3270/popup.h>
@@ -52,6 +53,10 @@
  #include <gtk/gtk.h>
  #include <errno.h>
 
+ #ifndef ETIMEDOUT
+	#define ETIMEDOUT 1238
+ #endif // !ETIMEDOUT
+
  #define PW3270_NAMESPACE h3270
 
  namespace PW3270_NAMESPACE
--
libgit2 0.21.2