diff --git a/src/lib/server/virtual_servers.c b/src/lib/server/virtual_servers.c
index dd4be7daaee5..a044aa6e29ef 100644
--- a/src/lib/server/virtual_servers.c
+++ b/src/lib/server/virtual_servers.c
@@ -716,6 +716,7 @@ int virtual_servers_open(fr_schedule_t *sc)
 	fr_assert(virtual_servers);
 
 	DEBUG2("#### Opening listener interfaces ####");
+	(void) fr_strerror();
 
 	for (i = 0; i < server_cnt; i++) {
 		fr_virtual_listen_t	**listener;