diff --git a/td/telegram/RequestActor.h b/td/telegram/RequestActor.h
index f32a76242..f80d06982 100644
--- a/td/telegram/RequestActor.h
+++ b/td/telegram/RequestActor.h
@@ -47,7 +47,6 @@ class RequestActor : public Actor {
       }
       stop();
     } else {
-      LOG_CHECK(!promise.was_set_value) << future.empty() << " " << future.get_state();
       CHECK(!future.empty());
       CHECK(future.get_state() == FutureActor<T>::State::Waiting);
       if (--tries_left_ == 0) {
diff --git a/tdactor/td/actor/PromiseFuture.h b/tdactor/td/actor/PromiseFuture.h
index b5dda83ae..51e1e56b2 100644
--- a/tdactor/td/actor/PromiseFuture.h
+++ b/tdactor/td/actor/PromiseFuture.h
@@ -62,12 +62,10 @@ class SafePromise;
 template <class T = Unit>
 class Promise {
  public:
-  bool was_set_value{false};
   void set_value(T &&value) {
     if (!promise_) {
       return;
     }
-    was_set_value = true;
     promise_->set_value(std::move(value));
     promise_.reset();
   }
@@ -75,7 +73,6 @@ class Promise {
     if (!promise_) {
       return;
     }
-    was_set_value = true;
     promise_->set_error(std::move(error));
     promise_.reset();
   }
@@ -83,7 +80,6 @@ class Promise {
     if (!promise_) {
       return;
     }
-    was_set_value = true;
     promise_->set_result(std::move(result));
     promise_.reset();
   }