diff --git a/td/generate/scheme/td_api.tl b/td/generate/scheme/td_api.tl
index 6412e0363..4ece67ac1 100644
--- a/td/generate/scheme/td_api.tl
+++ b/td/generate/scheme/td_api.tl
@@ -7997,7 +7997,7 @@ createNewStickerSet user_id:int53 title:string name:string sticker_format:Sticke
 //@user_id Sticker set owner
 //@name Sticker set name
 //@sticker Sticker to add to the set
-addStickerToSet user_id:int53 name:string sticker:inputSticker = StickerSet;
+addStickerToSet user_id:int53 name:string sticker:inputSticker = Ok;
 
 //@description Sets a sticker set thumbnail; for bots only. Returns the sticker set
 //@user_id Sticker set owner
diff --git a/td/telegram/StickersManager.cpp b/td/telegram/StickersManager.cpp
index a04c10d54..61b32a9e5 100644
--- a/td/telegram/StickersManager.cpp
+++ b/td/telegram/StickersManager.cpp
@@ -1186,11 +1186,10 @@ class CreateNewStickerSetQuery final : public Td::ResultHandler {
 };
 
 class AddStickerToSetQuery final : public Td::ResultHandler {
-  Promise<td_api::object_ptr<td_api::stickerSet>> promise_;
+  Promise<Unit> promise_;
 
  public:
-  explicit AddStickerToSetQuery(Promise<td_api::object_ptr<td_api::stickerSet>> &&promise)
-      : promise_(std::move(promise)) {
+  explicit AddStickerToSetQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
   }
 
   void send(const string &short_name, tl_object_ptr<telegram_api::inputStickerSetItem> &&input_sticker) {
@@ -1211,7 +1210,7 @@ class AddStickerToSetQuery final : public Td::ResultHandler {
     if (!sticker_set_id.is_valid()) {
       return on_error(Status::Error(500, "Sticker set not found"));
     }
-    promise_.set_value(td_->stickers_manager_->get_sticker_set_object(sticker_set_id));
+    promise_.set_value(Unit());
   }
 
   void on_error(Status status) final {
@@ -8450,8 +8449,7 @@ void StickersManager::on_new_stickers_uploaded(int64 random_id, Result<Unit> res
 }
 
 void StickersManager::add_sticker_to_set(UserId user_id, string short_name,
-                                         tl_object_ptr<td_api::inputSticker> &&sticker,
-                                         Promise<td_api::object_ptr<td_api::stickerSet>> &&promise) {
+                                         td_api::object_ptr<td_api::inputSticker> &&sticker, Promise<Unit> &&promise) {
   TRY_RESULT_PROMISE(promise, input_user, td_->contacts_manager_->get_input_user(user_id));
 
   short_name = clean_username(strip_empty_characters(short_name, MAX_STICKER_SET_SHORT_NAME_LENGTH));
@@ -8479,8 +8477,8 @@ void StickersManager::add_sticker_to_set(UserId user_id, string short_name,
 }
 
 void StickersManager::do_add_sticker_to_set(UserId user_id, string short_name,
-                                            tl_object_ptr<td_api::inputSticker> &&sticker,
-                                            Promise<td_api::object_ptr<td_api::stickerSet>> &&promise) {
+                                            td_api::object_ptr<td_api::inputSticker> &&sticker,
+                                            Promise<Unit> &&promise) {
   TRY_STATUS_PROMISE(promise, G()->close_status());
 
   const StickerSet *sticker_set = get_sticker_set(short_name_to_sticker_set_id_.get(short_name));
diff --git a/td/telegram/StickersManager.h b/td/telegram/StickersManager.h
index 2bcee389e..6a002bca0 100644
--- a/td/telegram/StickersManager.h
+++ b/td/telegram/StickersManager.h
@@ -305,8 +305,8 @@ class StickersManager final : public Actor {
                               vector<td_api::object_ptr<td_api::inputSticker>> &&stickers, string software,
                               Promise<td_api::object_ptr<td_api::stickerSet>> &&promise);
 
-  void add_sticker_to_set(UserId user_id, string short_name, tl_object_ptr<td_api::inputSticker> &&sticker,
-                          Promise<td_api::object_ptr<td_api::stickerSet>> &&promise);
+  void add_sticker_to_set(UserId user_id, string short_name, td_api::object_ptr<td_api::inputSticker> &&sticker,
+                          Promise<Unit> &&promise);
 
   void set_sticker_set_thumbnail(UserId user_id, string short_name, tl_object_ptr<td_api::InputFile> &&thumbnail,
                                  Promise<td_api::object_ptr<td_api::stickerSet>> &&promise);
@@ -540,7 +540,7 @@ class StickersManager final : public Actor {
     string short_name_;
     FileId file_id_;
     tl_object_ptr<td_api::inputSticker> sticker_;
-    Promise<td_api::object_ptr<td_api::stickerSet>> promise_;
+    Promise<Unit> promise_;
   };
 
   struct PendingSetStickerSetThumbnail {
@@ -874,8 +874,8 @@ class StickersManager final : public Actor {
 
   void on_added_sticker_uploaded(int64 random_id, Result<Unit> result);
 
-  void do_add_sticker_to_set(UserId user_id, string short_name, tl_object_ptr<td_api::inputSticker> &&sticker,
-                             Promise<td_api::object_ptr<td_api::stickerSet>> &&promise);
+  void do_add_sticker_to_set(UserId user_id, string short_name, td_api::object_ptr<td_api::inputSticker> &&sticker,
+                             Promise<Unit> &&promise);
 
   void on_sticker_set_thumbnail_uploaded(int64 random_id, Result<Unit> result);
 
diff --git a/td/telegram/Td.cpp b/td/telegram/Td.cpp
index d9cdc8b12..13f8e4fbf 100644
--- a/td/telegram/Td.cpp
+++ b/td/telegram/Td.cpp
@@ -7295,7 +7295,7 @@ void Td::on_request(uint64 id, td_api::createNewStickerSet &request) {
 void Td::on_request(uint64 id, td_api::addStickerToSet &request) {
   CHECK_IS_BOT();
   CLEAN_INPUT_STRING(request.name_);
-  CREATE_REQUEST_PROMISE();
+  CREATE_OK_REQUEST_PROMISE();
   stickers_manager_->add_sticker_to_set(UserId(request.user_id_), std::move(request.name_), std::move(request.sticker_),
                                         std::move(promise));
 }