diff --git a/ssl/d1_lib.c b/ssl/d1_lib.c
index 41daf4a3d..b4f5fcd7e 100644
--- a/ssl/d1_lib.c
+++ b/ssl/d1_lib.c
@@ -496,6 +496,9 @@ int dtls1_listen(SSL *s, struct sockaddr *client)
 {
     int ret;
 
+    /* Ensure there is no state left over from a previous invocation */
+    SSL_clear(s);
+
     SSL_set_options(s, SSL_OP_COOKIE_EXCHANGE);
     s->d1->listen = 1;