diff --git a/td/telegram/InlineQueriesManager.cpp b/td/telegram/InlineQueriesManager.cpp
index 51c201eeb..9a2625926 100644
--- a/td/telegram/InlineQueriesManager.cpp
+++ b/td/telegram/InlineQueriesManager.cpp
@@ -489,7 +489,7 @@ void InlineQueriesManager::answer_inline_query(int64 inline_query_id, bool is_pe
     int32 duration = 0;
 
     FileType file_type = FileType::Temp;
-    Result<tl_object_ptr<telegram_api::InputBotInlineMessage>> r_inline_message;
+    Result<tl_object_ptr<telegram_api::InputBotInlineMessage>> r_inline_message = Status::Error(500, "Uninited");
     switch (input_result->get_id()) {
       case td_api::inputInlineQueryResultAnimatedGif::ID: {
         auto animated_gif = move_tl_object_as<td_api::inputInlineQueryResultAnimatedGif>(input_result);
diff --git a/td/telegram/MessagesManager.cpp b/td/telegram/MessagesManager.cpp
index 0e495d89f..e214f0e69 100644
--- a/td/telegram/MessagesManager.cpp
+++ b/td/telegram/MessagesManager.cpp
@@ -16427,7 +16427,7 @@ Result<MessagesManager::InputMessageContent> MessagesManager::process_input_mess
 
   bool have_file = true;
   // TODO: send from secret chat to common
-  Result<FileId> r_file_id;
+  Result<FileId> r_file_id = Status::Error(500, "Have no file");
   tl_object_ptr<td_api::inputThumbnail> input_thumbnail;
   vector<FileId> sticker_file_ids;
   switch (message_type) {
diff --git a/td/telegram/Td.cpp b/td/telegram/Td.cpp
index 99d42ee7d..798f48c78 100644
--- a/td/telegram/Td.cpp
+++ b/td/telegram/Td.cpp
@@ -7178,18 +7178,17 @@ td_api::object_ptr<td_api::Object> Td::do_static_request(td_api::parseTextEntiti
     return make_error(400, "Parse mode must be non-empty");
   }
 
-  Result<vector<MessageEntity>> r_entities;
-  switch (request.parse_mode_->get_id()) {
-    case td_api::textParseModeHTML::ID:
-      r_entities = parse_html(request.text_);
-      break;
-    case td_api::textParseModeMarkdown::ID:
-      r_entities = parse_markdown(request.text_);
-      break;
-    default:
-      UNREACHABLE();
-      break;
-  }
+  auto r_entities = [&]() -> Result<vector<MessageEntity>> {
+    switch (request.parse_mode_->get_id()) {
+      case td_api::textParseModeHTML::ID:
+        return parse_html(request.text_);
+      case td_api::textParseModeMarkdown::ID:
+        return parse_markdown(request.text_);
+      default:
+        UNREACHABLE();
+        return Status::Error(500, "Unknown parse mode");
+    }
+  }();
   if (r_entities.is_error()) {
     return make_error(400, PSLICE() << "Can't parse entities: " << r_entities.error().message());
   }
diff --git a/td/telegram/files/FileUploader.cpp b/td/telegram/files/FileUploader.cpp
index 0c5c83363..ff5b0e47b 100644
--- a/td/telegram/files/FileUploader.cpp
+++ b/td/telegram/files/FileUploader.cpp
@@ -275,12 +275,13 @@ Result<size_t> FileUploader::process_part(Part part, NetQueryPtr net_query) {
   if (net_query->is_error()) {
     return std::move(net_query->error());
   }
-  Result<bool> result;
-  if (big_flag_) {
-    result = fetch_result<telegram_api::upload_saveBigFilePart>(net_query->ok());
-  } else {
-    result = fetch_result<telegram_api::upload_saveFilePart>(net_query->ok());
-  }
+  Result<bool> result = [&] {
+    if (big_flag_) {
+      return fetch_result<telegram_api::upload_saveBigFilePart>(net_query->ok());
+    } else {
+      return fetch_result<telegram_api::upload_saveFilePart>(net_query->ok());
+    }
+  }();
   if (result.is_error()) {
     return result.move_as_error();
   }
diff --git a/tdactor/td/actor/PromiseFuture.h b/tdactor/td/actor/PromiseFuture.h
index d26c32b77..81af29e24 100644
--- a/tdactor/td/actor/PromiseFuture.h
+++ b/tdactor/td/actor/PromiseFuture.h
@@ -517,7 +517,7 @@ class FutureActor final : public Actor {
 
  private:
   EventFull event_;
-  Result<T> result_;
+  Result<T> result_ = Status::Error(500, "Empty FutureActor");
   State state_;
 
   void set_value(T &&value) {
diff --git a/tdnet/td/net/GetHostByNameActor.h b/tdnet/td/net/GetHostByNameActor.h
index b352a05d1..dabed07f6 100644
--- a/tdnet/td/net/GetHostByNameActor.h
+++ b/tdnet/td/net/GetHostByNameActor.h
@@ -23,6 +23,9 @@ class GetHostByNameActor final : public td::Actor {
   struct Value {
     Result<td::IPAddress> ip;
     double expire_at;
+
+    Value(Result<td::IPAddress> ip, double expire_at) : ip(std::move(ip)), expire_at(expire_at) {
+    }
   };
   std::unordered_map<string, Value> cache_;
   static constexpr int32 CACHE_TIME = 60 * 29;       // 29 minutes
diff --git a/tdnet/td/net/HttpReader.cpp b/tdnet/td/net/HttpReader.cpp
index 1cfa7666a..f67cbd5b8 100644
--- a/tdnet/td/net/HttpReader.cpp
+++ b/tdnet/td/net/HttpReader.cpp
@@ -610,19 +610,20 @@ Status HttpReader::parse_json_parameters(MutableSlice parameters) {
       return Status::Error(400, "Bad Request: can't parse object, ':' expected");
     }
     parser.skip_whitespaces();
-    Result<MutableSlice> r_value;
-    if (parser.peek_char() == '"') {
-      r_value = json_string_decode(parser);
-    } else {
-      const int32 DEFAULT_MAX_DEPTH = 100;
-      auto begin = parser.ptr();
-      auto result = do_json_skip(parser, DEFAULT_MAX_DEPTH);
-      if (result.is_ok()) {
-        r_value = MutableSlice(begin, parser.ptr());
+    auto r_value = [&]() -> Result<MutableSlice> {
+      if (parser.peek_char() == '"') {
+        return json_string_decode(parser);
       } else {
-        r_value = result.move_as_error();
+        const int32 DEFAULT_MAX_DEPTH = 100;
+        auto begin = parser.ptr();
+        auto result = do_json_skip(parser, DEFAULT_MAX_DEPTH);
+        if (result.is_ok()) {
+          return MutableSlice(begin, parser.ptr());
+        } else {
+          return result.move_as_error();
+        }
       }
-    }
+    }();
     if (r_value.is_error()) {
       return Status::Error(400,
                            string("Bad Request: can't parse parameter value: ") + r_value.error().message().c_str());