diff --git a/Modules/socketmodule.c b/Modules/socketmodule.c
index 3618df1..c930ed3 100644
--- a/Modules/socketmodule.c
+++ b/Modules/socketmodule.c
@@ -5772,6 +5772,9 @@
 #ifdef  LOCAL_PEERCRED
     PyModule_AddIntConstant(m, "LOCAL_PEERCRED", LOCAL_PEERCRED);
 #endif
+#ifdef  SO_BINDTODEVICE
+    PyModule_AddIntMacro(m, SO_BINDTODEVICE);
+#endif
 
     /* Maximum number of connections for "listen" */
 #ifdef  SOMAXCONN