diff --git a/td/mtproto/HandshakeActor.h b/td/mtproto/HandshakeActor.h
index 930d3c8c9..b5a024906 100644
--- a/td/mtproto/HandshakeActor.h
+++ b/td/mtproto/HandshakeActor.h
@@ -12,7 +12,6 @@
 #include "td/utils/Status.h"
 
 namespace td {
-class DhCallback;
 namespace mtproto {
 class AuthKeyHandshake;
 class AuthKeyHandshakeContext;
diff --git a/td/telegram/files/FileManager.h b/td/telegram/files/FileManager.h
index 379ec56de..e36ac765c 100644
--- a/td/telegram/files/FileManager.h
+++ b/td/telegram/files/FileManager.h
@@ -251,7 +251,6 @@ class FileView {
   ConstFileNodePtr node_{};
 };
 
-class Td;
 class FileManager : public FileLoadManager::Callback {
  public:
   class DownloadCallback {