diff --git a/libs/libzrtp/src/zrtp.c b/libs/libzrtp/src/zrtp.c
index de630d23ef..773e585c41 100644
--- a/libs/libzrtp/src/zrtp.c
+++ b/libs/libzrtp/src/zrtp.c
@@ -800,6 +800,7 @@ void zrtp_profile_defaults(zrtp_profile_t* profile, zrtp_global_t* zrtp)
 	profile->cipher_types[0]	= ZRTP_CIPHER_AES256;
 	profile->cipher_types[1]	= ZRTP_CIPHER_AES128;
 	profile->auth_tag_lens[0]	= ZRTP_ATL_HS32;
+	profile->auth_tag_lens[1]	= ZRTP_ATL_HS80;
 	profile->hash_schemes[0]	= ZRTP_HASH_SHA256;
 
 	if (zrtp && (ZRTP_LICENSE_MODE_PASSIVE == zrtp->lic_mode)) {