diff --git a/Script/ManagerThread.py b/Script/ManagerThread.py
index 66ad17aefe29c9d1bf14cacb2926d8e6e574c257..3b02a67698070b04d7bf1cfd3d3a4b0fc0fa4805 100755
--- a/Script/ManagerThread.py
+++ b/Script/ManagerThread.py
@@ -19,6 +19,7 @@ from Conf import DrivenPool
 import math
 from utils import set_log_level,formatter,thread_id_string
 from itertools import chain
+import pprint
 
 class ManagerThread(threading.Thread):
 
@@ -233,7 +234,7 @@ class ManagerThread(threading.Thread):
             #### .data files from current run, locked when taken by CopyThread
 
             files = sum([glob.glob(os.path.join(folder,p)) for p in self.DataFilePattern],[])
-            self.logger.debug('%d files found on folder %s' % (len(files), folder))
+            self.logger.debug('%d files found on folder "%s" matching "%s"' % (len(files), folder, pprint.pformat(self.DataFilePattern)))
             
             for file in files: