diff --git a/goruby.c b/goruby.c
index 78d6dcad8d..310f236011 100644
--- a/goruby.c
+++ b/goruby.c
@@ -1,5 +1,3 @@
-#include <unistd.h>
-
 void Init_golf(void);
 #define ruby_options goruby_options
 #define ruby_run_node goruby_run_node
@@ -7,6 +5,14 @@ void Init_golf(void);
 #undef ruby_options
 #undef ruby_run_node
 
+#if defined _WIN32
+#include <io.h>
+#include <fcntl.h>
+#define pipe(p) _pipe(p, 32L, _O_NOINHERIT)
+#elif defined HAVE_UNISTD_H
+#include <unistd.h>
+#endif
+
 RUBY_EXTERN void *ruby_options(int argc, char **argv);
 RUBY_EXTERN int ruby_run_node(void*);
 RUBY_EXTERN void ruby_init_ext(const char *name, void (*init)(void));