diff --git a/pppd/plugins/radius/radiusclient/etc/dictionary b/pppd/plugins/radius/radiusclient/etc/dictionary
index b384607..7b3e7b0 100644
--- a/pppd/plugins/radius/radiusclient/etc/dictionary
+++ b/pppd/plugins/radius/radiusclient/etc/dictionary
@@ -78,6 +78,7 @@ ATTRIBUTE	Acct-Session-Id		44	string
 ATTRIBUTE	Acct-Authentic		45	integer
 ATTRIBUTE	Acct-Session-Time	46	integer
 ATTRIBUTE	Acct-Terminate-Cause	49	integer
+ATTRIBUTE       Chap-Challenge          60      string
 ATTRIBUTE	NAS-Port-Type		61	integer
 ATTRIBUTE	Port-Limit		62	integer
 ATTRIBUTE	Connect-Info		77	string