diff --git a/src/mod/endpoints/mod_verto/mod_verto.c b/src/mod/endpoints/mod_verto/mod_verto.c
index 00b2b4de00..7a1b5d17e8 100644
--- a/src/mod/endpoints/mod_verto/mod_verto.c
+++ b/src/mod/endpoints/mod_verto/mod_verto.c
@@ -836,7 +836,7 @@ static void set_perm(const char *str, switch_event_t **event, switch_bool_t add)
 		switch_event_create(event, SWITCH_EVENT_REQUEST_PARAMS);
 	}
 	
-	if (!zstr(str)) {
+	if (!zstr(str) && event && *event) {
 		edup = strdup(str);
 		switch_assert(edup);