diff --git a/mkdocs_monorepo_plugin/parser.py b/mkdocs_monorepo_plugin/parser.py
index 4a80d5d..57e7b9a 100644
--- a/mkdocs_monorepo_plugin/parser.py
+++ b/mkdocs_monorepo_plugin/parser.py
@@ -257,7 +257,7 @@ def getDocsDir(self):
 
     def getAlias(self):
         alias = self.navYaml["site_name"]
-        regex = '^[a-zA-Z0-9_\-/]+$'  # noqa: W605
+        regex = '^[a-zA-Z0-9_\.\-/]+$'  # noqa: W605
 
         if re.match(regex, alias) is None:
             alias = slugify(self.navYaml["site_name"])