diff --git a/Control/AthenaCommon/python/AppMgr.py b/Control/AthenaCommon/python/AppMgr.py
index d17683fb2fb3d8615f77a310f84625f3c623f06e..89bfcae52fd482d885e9f578534bd7cd87855f98 100755
--- a/Control/AthenaCommon/python/AppMgr.py
+++ b/Control/AthenaCommon/python/AppMgr.py
@@ -254,7 +254,7 @@ class AthAppMgr( AppMgr ):
 
       def _build():
          Logging.log.debug ("building master sequence...")
-         athMasterSeq = _as.AthSequencer ("AthMasterSeq",Sequential = True)
+         athMasterSeq = _as.AthSequencer ("AthMasterSeq",Sequential = True, StopOverride=True)
          athFilterSeq = _as.AthSequencer ("AthFilterSeq"); 
          athBeginSeq  = _as.AthSequencer ("AthBeginSeq",Sequential=True)
          athCondSeq   = _as.AthSequencer ("AthCondSeq")