diff --git a/pytonlib/tonlibjson.py b/pytonlib/tonlibjson.py
index 09cd97a..5b6439b 100644
--- a/pytonlib/tonlibjson.py
+++ b/pytonlib/tonlibjson.py
@@ -205,6 +205,8 @@ async def read_results(self):
                 result = None
                 try:
                     result = await asyncio.wait_for(self.loop.run_in_executor(None, receive_func), timeout=timeout + delta)
+                except asyncio.CancelledError:
+                    raise
                 except asyncio.TimeoutError:
                     logger.critical(f"Tonlib #{self.ls_index:03d} stuck (timeout error)")
                     self._state = "stuck"