diff --git a/README.md b/README.md
index 55b6d3f1e..66d1882a6 100644
--- a/README.md
+++ b/README.md
@@ -55,7 +55,7 @@ If you want to avoid receiving data with missing fields during cleanup:
 This method is used to read the size of all the biggest data maps inside tdlib implementation.
 The output contains a string that can be parsed as a JSON.
 
-## Other reccomended options
+## Other recommended options
 * Options:
     * ignore_inline_thumbnails: true
     * disable_top_chats: true
@@ -69,7 +69,7 @@ The output contains a string that can be parsed as a JSON.
 -----
 
 
-The following text is the classic tdlib readme:
+The following text is the classic TDLib readme:
 
 # TDLib
 
diff --git a/td/telegram/MemoryManager.cpp b/td/telegram/MemoryManager.cpp
index 22e792085..059094951 100644
--- a/td/telegram/MemoryManager.cpp
+++ b/td/telegram/MemoryManager.cpp
@@ -103,13 +103,15 @@ bool MemoryManager::do_session_settings_allow_for_memory_management() {
 
 void MemoryManager::get_memory_stats(bool full, Promise<MemoryStats> promise) const {
   if (!can_manage_memory()) {
-    auto value = MemoryStats("{}");
+    auto value = MemoryStats(R"({"warning": "OptimizeMemory is not enabled, please read the recommended options on README.md"})");
 
     promise.set_value(std::move(value));
     return;
   }
 
-  vector<string> output = {"{\"memory_stats\":{"};
+  vector<string> output = {"{"};
+
+  output.push_back("\"memory_stats\":{");
 
   output.push_back("\"messages_manager_\":{");
   td_->messages_manager_->memory_stats(output);
@@ -200,7 +202,9 @@ void MemoryManager::get_memory_stats(bool full, Promise<MemoryStats> promise) co
   td_->poll_manager_->memory_stats(output);
   output.push_back("}");
 
-  output.push_back("}}");
+  output.push_back("}");
+
+  output.push_back("}");
 
   string s;
   s = accumulate(output.begin(), output.end(), s);
diff --git a/td/telegram/MemoryManager.h b/td/telegram/MemoryManager.h
index 9b49f6283..d568d9c17 100644
--- a/td/telegram/MemoryManager.h
+++ b/td/telegram/MemoryManager.h
@@ -39,7 +39,7 @@ class Td;
 struct MemoryStats {
   string debug;
   MemoryStats() = default;
-  explicit MemoryStats(string debug) : debug(debug) {
+  explicit MemoryStats(string debug) : debug(std::move(debug)) {
   }
   tl_object_ptr<td_api::memoryStatistics> get_memory_statistics_object() const;
 };