diff --git a/internal/proxy/proxy.go b/internal/proxy/proxy.go
index 993d275c45..1a0567115d 100644
--- a/internal/proxy/proxy.go
+++ b/internal/proxy/proxy.go
@@ -211,6 +211,7 @@ func (node *Proxy) Init() error {
 	return nil
 }
 
+// sendChannelsTimeTickLoop starts a goroutine that synchronize the time tick information.
 func (node *Proxy) sendChannelsTimeTickLoop() {
 	node.wg.Add(1)
 	go func() {