diff --git a/src/modules/auth/auth_mod.c b/src/modules/auth/auth_mod.c
index 3a05689f002..e522538e415 100644
--- a/src/modules/auth/auth_mod.c
+++ b/src/modules/auth/auth_mod.c
@@ -1102,6 +1102,14 @@ static int www_challenge(struct sip_msg *msg, char* realm, char *flags)
 	return -1;
 }
 
+/**
+ *
+ */
+static int ki_www_challenge(struct sip_msg *msg, str* realm, int flags)
+{
+	return auth_challenge_hftype(msg, realm, flags, HDR_AUTHORIZATION_T);
+}
+
 /**
  *
  */
@@ -1259,6 +1267,11 @@ static sr_kemi_t sr_kemi_auth_exports[] = {
 		{ SR_KEMIP_STR, SR_KEMIP_INT, SR_KEMIP_NONE,
 			SR_KEMIP_NONE, SR_KEMIP_NONE, SR_KEMIP_NONE }
 	},
+	{ str_init("auth"), str_init("www_challenge"),
+		SR_KEMIP_INT, ki_www_challenge,
+		{ SR_KEMIP_STR, SR_KEMIP_INT, SR_KEMIP_NONE,
+			SR_KEMIP_NONE, SR_KEMIP_NONE, SR_KEMIP_NONE }
+	},
 	{ str_init("auth"), str_init("pv_auth_check"),
 		SR_KEMIP_INT, pv_auth_check,
 		{ SR_KEMIP_STR, SR_KEMIP_STR, SR_KEMIP_INT,