diff --git a/openair-cn/S6A/s6a_peer.c b/openair-cn/S6A/s6a_peer.c
index 64d82031c1..13410d19b1 100644
--- a/openair-cn/S6A/s6a_peer.c
+++ b/openair-cn/S6A/s6a_peer.c
@@ -123,7 +123,8 @@ int s6a_fd_new_peer(void)
     S6A_DEBUG("Diameter identity of MME: %s with length: %zd\n",
               fd_g_config->cnf_diamid, fd_g_config->cnf_diamid_len);
 
-    hss_name = strdup("hss.");
+    hss_name = calloc(1,100);
+    strcat(hss_name, "hss.");
     strcat(hss_name, mme_config.realm);
     info.pi_diamid = hss_name;
     info.pi_diamidlen = strlen(info.pi_diamid);