diff --git a/server.go b/server.go
index 52241eb6f..499e52e4d 100644
--- a/server.go
+++ b/server.go
@@ -141,7 +141,7 @@ func (s *server) setupTLS() error {
 				connID := tlsSession.connID
 				sess := tlsSession.sess
 				if _, ok := s.sessions[connID]; ok { // drop this session if it already exists
-					return
+					continue
 				}
 				s.sessionsMutex.Lock()
 				s.sessions[connID] = sess