diff --git a/docker/transport/npipesocket.py b/docker/transport/npipesocket.py
index d91938e766..4df2a434b4 100644
--- a/docker/transport/npipesocket.py
+++ b/docker/transport/npipesocket.py
@@ -211,9 +211,6 @@ def close(self):
         super().close()
         self.sock = None
 
-    def fileno(self):
-        return self.sock.fileno()
-
     def isatty(self):
         return False