diff --git a/ecowitt2mqtt/__main__.py b/ecowitt2mqtt/__main__.py
index f66d0b22..2e9ebbfa 100644
--- a/ecowitt2mqtt/__main__.py
+++ b/ecowitt2mqtt/__main__.py
@@ -251,7 +251,7 @@ def get_cli_arguments(args: list[str]) -> dict[str, Any]:
     parser.add_argument(
         "--locale",
         dest=CONF_LOCALE,
-        help=f"The locale to set (default: system default)",
+        help="The locale to set (default: system default)",
         metavar=CONF_LOCALE,
     )
     parser.add_argument(
diff --git a/ecowitt2mqtt/core.py b/ecowitt2mqtt/core.py
index 97121545..d58cc1fb 100644
--- a/ecowitt2mqtt/core.py
+++ b/ecowitt2mqtt/core.py
@@ -63,9 +63,9 @@ def __init__(self, params: dict[str, Any]) -> None:
         LOGGER.debug("Input CLI options/environment variables: %s", params)
         LOGGER.debug("Configs loaded: %s", self.configs)
 
-        if locale := self.configs.default_config.locale:
+        if provided_locale := self.configs.default_config.locale:
             LOGGER.debug("Setting locale: %s", self.configs.default_config.locale)
-            locale.setlocale(locale.LC_ALL, locale)
+            locale.setlocale(locale.LC_ALL, provided_locale)
 
         self.runtime = Runtime(self)