diff --git a/catchain/catchain-receiver-source.h b/catchain/catchain-receiver-source.h
index 55035e77..136906a0 100644
--- a/catchain/catchain-receiver-source.h
+++ b/catchain/catchain-receiver-source.h
@@ -61,7 +61,7 @@ class CatChainReceiverSource {
   virtual td::BufferSlice fork_proof() const = 0;
   virtual bool fork_is_found() const = 0;
 
-  // One block can be sent to one node only a limited number of times to prevent DoS
+  // One block can be sent to one node in catchain.getDifference only a limited number of times to prevent DoS
   virtual bool allow_send_block(CatChainBlockHash hash) = 0;
 
   static td::Result<std::unique_ptr<CatChainReceiverSource>> create(CatChainReceiver *chain, PublicKey pub_key,
diff --git a/catchain/catchain-receiver.cpp b/catchain/catchain-receiver.cpp
index 82779e3b..ade4726f 100644
--- a/catchain/catchain-receiver.cpp
+++ b/catchain/catchain-receiver.cpp
@@ -697,12 +697,8 @@ void CatChainReceiverImpl::process_query(adnl::AdnlNodeIdShort src, ton_api::cat
   } else {
     CatChainReceiverSource *S = get_source_by_adnl_id(src);
     CHECK(S != nullptr);
-    if (S->allow_send_block(it->second->get_hash())) {
-      promise.set_value(serialize_tl_object(create_tl_object<ton_api::catchain_blockResult>(it->second->export_tl()),
-                                            true, it->second->get_payload().as_slice()));
-    } else {
-      promise.set_error(td::Status::Error("block was requested too many times"));
-    }
+    promise.set_value(serialize_tl_object(create_tl_object<ton_api::catchain_blockResult>(it->second->export_tl()),
+                                          true, it->second->get_payload().as_slice()));
   }
 }