diff --git a/iwla.py b/iwla.py
index fea645e..7d8e4a1 100755
--- a/iwla.py
+++ b/iwla.py
@@ -34,7 +34,6 @@ from calendar import monthrange
 from datetime import date, datetime
 
 import default_conf as conf
-import conf as user_conf
 
 from iplugin import *
 from display import *
@@ -658,9 +657,10 @@ class IWLA(object):
         if not year in self.meta_infos['stats'].keys():
             self.meta_infos['stats'][year] = {}
         self.meta_infos['stats'][year][month] = duplicated_stats
-            
-        self.logger.info("==> Serialize to %s" % (conf.META_PATH))
-        self._serialize(self.meta_infos, conf.META_PATH)
+
+        meta_path = os.path.join(conf.DB_ROOT, conf.META_FILENAME)
+        self.logger.info("==> Serialize to %s" % (meta_path))
+        self._serialize(self.meta_infos, meta_path)
 
         self._generateDisplay()
 
@@ -766,10 +766,12 @@ class IWLA(object):
     def start(self, _file, args):
         self.args = args
         self.start_time = datetime.now()
+    
+        meta_path = os.path.join(conf.DB_ROOT, conf.META_FILENAME)
+        if os.path.exists(meta_path):
+            self.logger.info('==> Load previous database')
 
-        self.logger.info('==> Load previous database')
-
-        self.meta_infos = self._deserialize(conf.META_PATH) or self._clearMeta()
+        self.meta_infos = self._deserialize(meta_path) or self._clearMeta()
         if self.meta_infos['last_time']:
             if args.reset:
                 self._reset()
@@ -842,7 +844,11 @@ class FileIter(object):
 if __name__ == '__main__':
     parser = argparse.ArgumentParser(description='Intelligent Web Log Analyzer')
 
-    parser.add_argument('-c', '--clean-output', dest='clean_output', action='store_true',
+    parser.add_argument('-c', '--config-file', dest='config_file',
+                        default='conf.py', type=str,
+                        help='Config file to use (default conf.py)')
+
+    parser.add_argument('-C', '--clean-output', dest='clean_output', action='store_true',
                         default=False,
                         help='Clean output before starting')
 
@@ -875,6 +881,11 @@ if __name__ == '__main__':
 
     args = parser.parse_args()
 
+    if args.config_file.endswith('.py'):
+        args.config_file = args.config_file[:-3]
+        
+    user_conf = importlib.import_module(args.config_file)
+    
     # Load user conf
     for (k,v) in user_conf.__dict__.items():
         if k.endswith('_append'):