diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h
index 011947b232c4..3217165e9bf3 100644
--- a/include/net/cfg80211.h
+++ b/include/net/cfg80211.h
@@ -24,6 +24,9 @@
 #include <linux/net.h>
 #include <net/regulatory.h>
 
+/* Indicate backport support for external authentication*/
+#define CFG80211_EXTERNAL_AUTH_SUPPORT 1
+
 /**
  * DOC: Introduction
  *