diff --git a/controller_manager/controller_manager/spawner.py b/controller_manager/controller_manager/spawner.py
index 35cdaae968..3d89ee5c06 100644
--- a/controller_manager/controller_manager/spawner.py
+++ b/controller_manager/controller_manager/spawner.py
@@ -19,6 +19,8 @@
 import sys
 import time
 import warnings
+import io
+from contextlib import redirect_stdout, redirect_stderr
 
 from controller_manager import configure_controller, list_controllers, \
     load_controller, switch_controllers, unload_controller