diff --git a/mkdocs_mdpo_plugin/config.py b/mkdocs_mdpo_plugin/config.py
index 1e6c720..5f8d933 100644
--- a/mkdocs_mdpo_plugin/config.py
+++ b/mkdocs_mdpo_plugin/config.py
@@ -23,7 +23,7 @@ def on_config_event(plugin, config, **kwargs):
 
     * Define properly `lc_messages`, `languages` and `locale_dir`
       configuration settings.
-    * Loads `mkdocs.mdpo` extension.
+    * Loads `mkdocs-mdpo` extension.
     * Configures md4c extensions accordingly to Python-Markdown extensions.
     * Stores the Markdown extensions used in the build in the
       ``extensions.markdown`` property of the plugin instance.
@@ -128,10 +128,10 @@ def _languages_required():
             if 'strikethrough' in plugin.extensions.md4c:
                 plugin.extensions.md4c.remove('strikethrough')
 
-        # configure internal 'mkdocs.mdpo' extension
-        if 'mkdocs.mdpo' in markdown_extensions:  # pragma: no cover
-            config['markdown_extensions'].remove('mkdocs.mdpo')
-        config['markdown_extensions'].append('mkdocs.mdpo')
+        # configure internal 'mkdocs-mdpo' extension
+        if 'mkdocs-mdpo' in markdown_extensions:  # pragma: no cover
+            config['markdown_extensions'].remove('mkdocs-mdpo')
+        config['markdown_extensions'].append('mkdocs-mdpo')
 
     # store reference in plugin to markdown_extensions for later usage
     plugin.extensions.markdown = markdown_extensions
diff --git a/mkdocs_mdpo_plugin/plugin.py b/mkdocs_mdpo_plugin/plugin.py
index fb16e28..9cd682a 100644
--- a/mkdocs_mdpo_plugin/plugin.py
+++ b/mkdocs_mdpo_plugin/plugin.py
@@ -38,7 +38,7 @@ def __init__(self, *args, **kwargs):
         self.extensions = Extensions()
 
         # instance that represents the run
-        # (needed by `mkdocs.mdpo` extension)
+        # (needed by `mkdocs-mdpo` extension)
         MkdocsBuild.instance(self)
 
         super().__init__(*args, **kwargs)
@@ -183,7 +183,7 @@ def on_page_markdown(self, markdown, page, config, files):
 
         * For each documentation page, creates another documentation page
           for each language that will be translated (part here and part
-          inside the `mkdocs.mdpo` extension, see
+          inside the `mkdocs-mdpo` extension, see
           :py:mod:`mkdocs_mdpo_plugin.extension` module).
         """
         # only process original files, pages created for translation
diff --git a/setup.cfg b/setup.cfg
index 02f5367..f9d851d 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -33,7 +33,7 @@ include_package_data = True
 
 [options.entry_points]
 markdown.extensions =
-    mkdocs.mdpo = mkdocs_mdpo_plugin.extensions:MkdocsMdpoExtension
+    mkdocs-mdpo = mkdocs_mdpo_plugin.extensions:MkdocsMdpoExtension
 mkdocs.plugins =
     mdpo = mkdocs_mdpo_plugin.plugin:MdpoPlugin