Fix race condition when switching servers

1 files changed, 3 insertions, 0 deletions

diff --git a/hop.go b/hop.go
index d64ec21..ae856ef 100644
--- a/hop.go
+++ b/hop.go
@@ -31,7 +31,10 @@ func (cc *clientConn) hop(serverName string) error {
 
 	// This needs to be done before the serverConn is closed
 	// so the clientConn isn't closed by the packet handler
+	cc.mu.Lock()
 	cc.server().clt = nil
+	cc.mu.Unlock()
+
 	cc.server().Close()
 
 	// Reset the client to its initial state