diff --git a/Control/AthenaConfiguration/python/ComponentAccumulator.py b/Control/AthenaConfiguration/python/ComponentAccumulator.py
index 08aaf96af663bfaa218a8f00dc21e9be6a19445a..50d4323dcf812bcf1b01354d493b05fa26745161 100644
--- a/Control/AthenaConfiguration/python/ComponentAccumulator.py
+++ b/Control/AthenaConfiguration/python/ComponentAccumulator.py
@@ -731,6 +731,7 @@ class ComponentAccumulator(object):
             pt.name="ToolSvc."+pt.name
             addCompToJos(pt)
             pass
+        sys.stdout.flush()
 
         return app