diff --git a/data/config_example.json b/data/config_example.json
index 22f63eb..054a274 100644
--- a/data/config_example.json
+++ b/data/config_example.json
@@ -47,6 +47,9 @@
     /* Regex patterns to exclude from backup.                                                                         */
     "exclude_patterns": [],
 
+    /* Maximum allowed time, spent for getting file list from backupped directories.                                  */
+    "dir_scan_timeout": 60,
+
     /* Directories to backup.                                                                                         */
     "directories": [
         "/path/to/directory1",
diff --git a/test_data/test_config.json b/test_data/test_config.json
index a0b749e..9ba8fef 100644
--- a/test_data/test_config.json
+++ b/test_data/test_config.json
@@ -5,10 +5,10 @@
     /* By default listen on port 8086, like first intel commercially successful cpu model.                            */
     "port": 8086,
 
-    /* Path location of certificate file                                                                              */
+    /* Path location of test certificate file                                                                       */
     "cert": "../../test_data/example.crt",
 
-    /* Path location of certificate key                                                                               */
+    /* Path location of test certificate key                                                                          */
     "key": "../../test_data/example.key",
 
     /* We really want to use https for backup archive tranferring.                                                    */