diff --git a/telegram-bot-api/telegram-bot-api.cpp b/telegram-bot-api/telegram-bot-api.cpp
index 04d070b..3ae58f5 100644
--- a/telegram-bot-api/telegram-bot-api.cpp
+++ b/telegram-bot-api/telegram-bot-api.cpp
@@ -21,6 +21,7 @@
 #include "td/net/HttpInboundConnection.h"
 
 #include "td/actor/actor.h"
+#include "td/actor/ConcurrentScheduler.h"
 #include "td/actor/PromiseFuture.h"
 
 #include "td/utils/buffer.h"