diff --git a/OTAnalytics/plugin_parser/argparse_cli_parser.py b/OTAnalytics/plugin_parser/argparse_cli_parser.py
index 9d45c416d..960fd6fc6 100644
--- a/OTAnalytics/plugin_parser/argparse_cli_parser.py
+++ b/OTAnalytics/plugin_parser/argparse_cli_parser.py
@@ -151,9 +151,9 @@ def _setup(self) -> None:
             nargs="+",
             type=str,
             help=(
-                "Whitelist filter to include tracks with given classes."
+                "Whitelist filter to include tracks with given classes. "
                 "Classes specified in `--include-classes` are always kept "
-                "even if they are appear in `--exclude-classes`."
+                "even if they appear in `--exclude-classes`."
             ),
             required=False,
         )