diff --git a/home/control_update.go b/home/control_update.go
index ca2ac63e..92c82f1e 100644
--- a/home/control_update.go
+++ b/home/control_update.go
@@ -91,6 +91,7 @@ func handleGetVersionJSON(w http.ResponseWriter, r *http.Request) {
 		resp, err = config.client.Get(versionCheckURL)
 		if err != nil && strings.HasSuffix(err.Error(), "i/o timeout") {
 			// This case may happen while we're restarting DNS server
+			// https://github.com/AdguardTeam/AdGuardHome/issues/934
 			continue
 		}
 		break