diff --git a/rdt/transformers/pii/anonymizer.py b/rdt/transformers/pii/anonymizer.py
index 8dda0e54e..68c7efefb 100644
--- a/rdt/transformers/pii/anonymizer.py
+++ b/rdt/transformers/pii/anonymizer.py
@@ -81,7 +81,7 @@ def _check_locales(self):
         missed_locales = []
         for locale in locales:
             spec = importlib.util.find_spec(f'faker.providers.{self.provider_name}.{locale}')
-            if spec is None and not self.provider_name.endswith(locale):
+            if spec is None and not self.provider_name.endswith(f'.{locale}'):
                 missed_locales.append(locale)
 
         if missed_locales: