diff --git a/src/Main/fg_init.cxx b/src/Main/fg_init.cxx
index 8ac8701d2..008ac5018 100644
--- a/src/Main/fg_init.cxx
+++ b/src/Main/fg_init.cxx
@@ -37,6 +37,7 @@
 #  define getcwd _getcwd
 #  include <io.h>               // isatty()
 #  define isatty _isatty
+#  include "Winsock2.h"		// for gethostname()
 #endif
 
 // work around a stdc++ lib bug in some versions of linux, but doesn't