diff --git a/Python/pythonrun.c b/Python/pythonrun.c
index a9b7f81..e1483aa 100644
--- a/Python/pythonrun.c
+++ b/Python/pythonrun.c
@@ -82,6 +82,7 @@
   on the command line, and is used in 2.2 by ceval.c to make all "/" divisions
   true divisions (which they will be in 2.3). */
 int _Py_QnewFlag = 0;
+int Py_NoUserSiteDirectory = 0; /* for -s and site.py */
 
 /* PyModule_GetWarningsModule is no longer necessary as of 2.6
 since _warnings is builtin.  This API should not be used. */