diff --git a/Configuration/Applications/scripts/cmsDriver.py b/Configuration/Applications/scripts/cmsDriver.py
index f20e353075101..90009fe476106 100755
--- a/Configuration/Applications/scripts/cmsDriver.py
+++ b/Configuration/Applications/scripts/cmsDriver.py
@@ -45,10 +45,8 @@ def run():
             commandString = options.prefix+" cmsRun "+options.suffix
             print("Starting "+commandString+' '+options.python_filename)
             commands = commandString.lstrip().split()
+            sys.stdout.flush()
             os.execvpe(commands[0],commands+[options.python_filename],os.environ)
             sys.exit()
 
 run()
-
-
-