diff --git a/td/generate/DotnetTlDocumentationGenerator.php b/td/generate/DotnetTlDocumentationGenerator.php
index b27717a67..db53cc1ea 100644
--- a/td/generate/DotnetTlDocumentationGenerator.php
+++ b/td/generate/DotnetTlDocumentationGenerator.php
@@ -6,7 +6,7 @@ class DotnetTlDocumentationGenerator extends TlDocumentationGenerator
 {
     protected function escapeDocumentation($doc)
     {
-        $doc = preg_replace_callback('/(?<!["A-Za-z_])[A-Za-z]*_[A-Za-z_]*/',
+        $doc = preg_replace_callback('/(?<!["A-Za-z_\/])[A-Za-z]*_[A-Za-z_]*/',
             function ($word_matches)
             {
                 return ucfirst(preg_replace_callback('/_([A-Za-z])/', function ($matches) {return strtoupper($matches[1]);}, $word_matches[0]));
diff --git a/td/generate/JavadocTlDocumentationGenerator.php b/td/generate/JavadocTlDocumentationGenerator.php
index d85181801..99fea2271 100644
--- a/td/generate/JavadocTlDocumentationGenerator.php
+++ b/td/generate/JavadocTlDocumentationGenerator.php
@@ -10,7 +10,7 @@ class JavadocTlDocumentationGenerator extends TlDocumentationGenerator
 
     protected function escapeDocumentation($doc)
     {
-        $doc = preg_replace_callback('/(?<!["A-Za-z_])[A-Za-z]*_[A-Za-z_]*/',
+        $doc = preg_replace_callback('/(?<!["A-Za-z_\/])[A-Za-z]*_[A-Za-z_]*/',
             function ($word_matches)
             {
                 return preg_replace_callback('/_([A-Za-z])/', function ($matches) {return strtoupper($matches[1]);}, $word_matches[0]);
diff --git a/td/generate/TlDocumentationGenerator.php b/td/generate/TlDocumentationGenerator.php
index 11a281ce3..8868ad2f2 100644
--- a/td/generate/TlDocumentationGenerator.php
+++ b/td/generate/TlDocumentationGenerator.php
@@ -146,7 +146,7 @@ abstract class TlDocumentationGenerator
                         if ($key === 'description') {
                             $need_class_description = false;
 
-                            $value = $this->addDot($value);
+                            $value = $this->escapeDocumentation($this->addDot($value));
 
                             $this->addAbstractClassDocumentation($current_class, $value);
                             continue;
diff --git a/td/telegram/files/FileDownloader.cpp b/td/telegram/files/FileDownloader.cpp
index 881f22bd2..38353df9e 100644
--- a/td/telegram/files/FileDownloader.cpp
+++ b/td/telegram/files/FileDownloader.cpp
@@ -355,7 +355,7 @@ Result<size_t> FileDownloader::process_part(Part part, NetQueryPtr net_query) {
 
   auto slice = bytes.as_slice().truncate(part.size);
   TRY_STATUS(acquire_fd());
-  LOG(INFO) << "Got " << slice.size() << " bytes at " << part.offset << " for \"" << path_ << '"';
+  LOG(INFO) << "Got " << slice.size() << " bytes at offset " << part.offset << " for \"" << path_ << '"';
   TRY_RESULT(written, fd_.pwrite(slice, part.offset));
   // may write less than part.size, when size of downloadable file is unknown
   if (written != slice.size()) {