diff --git a/zmq/asyncio.py b/zmq/asyncio.py
index 22bbd14d4..a4f73ca5c 100644
--- a/zmq/asyncio.py
+++ b/zmq/asyncio.py
@@ -158,7 +158,7 @@ def _clear_io_state(self):
         """
         loop = self._current_loop
         if loop and not loop.is_closed() and self._fd != -1:
-            self._get_selector(loop).remove_reader(self._fd)
+        	self._get_selector(loop).remove_reader(self._fd)
 
 
 Poller._socket_class = Socket