diff --git a/src/rpc/core_rpc_server.cpp b/src/rpc/core_rpc_server.cpp
index add47f52..6306d3ac 100644
--- a/src/rpc/core_rpc_server.cpp
+++ b/src/rpc/core_rpc_server.cpp
@@ -869,6 +869,13 @@ namespace currency
       return true;
     }
 
+    if (m_p2p.get_payload_object().get_core().get_blockchain_storage().is_pre_hardfork_tx_freeze_period_active())
+    {
+      LOG_PRINT_L0("[on_send_raw_tx]: pre hardfork freeze period is in effect, sending transactions is not allowed till the next hardfork. Please, try again after the hardfork activation.");
+      res.status = API_RETURN_CODE_BUSY;
+      return true;
+    }
+
     currency_connection_context fake_context = AUTO_VAL_INIT(fake_context);
     tx_verification_context tvc = AUTO_VAL_INIT(tvc);
     if(!m_core.handle_incoming_tx(tx_blob, tvc, false))