diff --git a/migration/migration.c b/migration/migration.c
index 4b26110d57..c4c9aee15e 100644
--- a/migration/migration.c
+++ b/migration/migration.c
@@ -790,7 +790,8 @@ MigrationParameters *qmp_query_migrate_parameters(Error **errp)
     params->has_tls_hostname = true;
     params->tls_hostname = g_strdup(s->parameters.tls_hostname);
     params->has_tls_authz = true;
-    params->tls_authz = g_strdup(s->parameters.tls_authz);
+    params->tls_authz = g_strdup(s->parameters.tls_authz ?
+                                 s->parameters.tls_authz : "");
     params->has_max_bandwidth = true;
     params->max_bandwidth = s->parameters.max_bandwidth;
     params->has_downtime_limit = true;
diff --git a/monitor/hmp-cmds.c b/monitor/hmp-cmds.c
index 04ca342c51..9b94e67879 100644
--- a/monitor/hmp-cmds.c
+++ b/monitor/hmp-cmds.c
@@ -459,9 +459,9 @@ void hmp_info_migrate_parameters(Monitor *mon, const QDict *qdict)
         monitor_printf(mon, "%s: %" PRIu64 "\n",
             MigrationParameter_str(MIGRATION_PARAMETER_MAX_POSTCOPY_BANDWIDTH),
             params->max_postcopy_bandwidth);
-        monitor_printf(mon, " %s: '%s'\n",
+        monitor_printf(mon, "%s: '%s'\n",
             MigrationParameter_str(MIGRATION_PARAMETER_TLS_AUTHZ),
-            params->has_tls_authz ? params->tls_authz : "");
+            params->tls_authz);
     }
 
     qapi_free_MigrationParameters(params);