diff --git a/td/telegram/misc.cpp b/td/telegram/misc.cpp
index e6d9e944..d2a0abd0 100644
--- a/td/telegram/misc.cpp
+++ b/td/telegram/misc.cpp
@@ -323,7 +323,7 @@ Result<string> check_url(Slice url) {
     return PSTRING() << (is_tg ? "tg" : "ton") << "://" << http_url.host_ << query;
   }
 
-  if (url.find('.') == string::npos) {
+  if (http_url.host_.find('.') == string::npos) {
     return Status::Error("Wrong HTTP URL");
   }
   return http_url.get_url();