diff --git a/Python/pythonrun.c b/Python/pythonrun.c
index f7335a2..e3836b8 100644
--- a/Python/pythonrun.c
+++ b/Python/pythonrun.c
@@ -78,6 +78,7 @@
 
 int Py_DebugFlag; /* Needed by parser.c */
 int Py_VerboseFlag; /* Needed by import.c */
+int Py_QuietFlag; /* Needed by sysmodule.c */
 int Py_InteractiveFlag; /* Needed by Py_FdIsInteractive() below */
 int Py_InspectFlag; /* Needed to determine whether to exit at SystemError */
 int Py_NoSiteFlag; /* Suppress 'import site' */