diff --git a/ptvp35/__init__.py b/ptvp35/__init__.py
index 63d816a..bb623d2 100644
--- a/ptvp35/__init__.py
+++ b/ptvp35/__init__.py
@@ -162,7 +162,7 @@ class DbConnection:
             await self._dump_buffer()
             request.set_result(None)
         else:
-            await self.__queue.put(DumpRequest(request.future))
+            self.__queue.put_nowait(DumpRequest(request.future))
 
     async def _write(self, line: str, request: Request):
         self.__buffer.write(line)