diff -r 9c7ab3e68243 Modules/socketmodule.c
--- a/Modules/socketmodule.c	Tue Nov 26 16:19:38 2013 +0000
+++ b/Modules/socketmodule.c	Tue Nov 26 19:40:09 2013 +0200
@@ -6241,6 +6241,9 @@
 #ifdef  SO_BINDTODEVICE
     PyModule_AddIntMacro(m, SO_BINDTODEVICE);
 #endif
+#ifdef  SO_PRIORITY
+    PyModule_AddIntMacro(m, SO_PRIORITY);
+#endif
 
     /* Maximum number of connections for "listen" */
 #ifdef  SOMAXCONN