diff --git a/send_data.py b/send_data.py
index f28870e..e779c5c 100644
--- a/send_data.py
+++ b/send_data.py
@@ -81,13 +81,14 @@ mode_group = parser.add_argument_group('Mode')
 mode_group.add_argument('-A', '--ALL', action='store_true',
                         help='Send all possible data: song, artist and album')
 mode_group.add_argument('-D', '--DELETE', action='store_true',
-                        help='Delete old index')
+                        help='Delete old index (precise name with -idx argument)')
 # Settings
 g_settings_group = parser.add_argument_group('Global Settings')
 g_settings_group.add_argument('-els', '--elasticsearch-url', default=ELASTICSEARCH_URL, nargs='?',
                               help="Elasticsearch URL to send data (default: \'{}\')".format(ELASTICSEARCH_URL))
 g_settings_group.add_argument('-idx', '--index-name', default=INDEX_NAME,
-                              help="Index name in Elasticsearch for data (default: \'{}\')".format(INDEX_NAME))
+                              help="Index name in Elasticsearch ONLY FOR DELETING! (default: \'{}\'). ".format(INDEX_NAME) +
+                              "When sending data, index name is specified in JSON files.")
 
 if __name__ == '__main__':
     args = parser.parse_args()