diff --git a/website/i18n/en.json b/website/i18n/en.json
index 1b5604cb..95e79202 100644
--- a/website/i18n/en.json
+++ b/website/i18n/en.json
@@ -26,10 +26,14 @@
     "creating_platform_example_light": "Example light platform",
     "creating_platform_example_sensor": "Example sensor platform",
     "creating_platform_index": "Adding support for a new platform",
-    "development_101": "Development 101",
+    "dev_101_config": "Using Config",
+    "dev_101_events": "Using Events",
+    "dev_101_hass": "Hass object",
+    "dev_101_index": "Development 101",
+    "dev_101_services": "Using Services",
+    "dev_101_states": "Using States",
     "development_catching_up": "Catching up with Reality",
     "development_checklist": "Development Checklist",
-    "development_config": "Using Config",
     "development_environment": "Set up Development Environment",
     "development_guidelines": "Style guidelines",
     "development_index": "Starting with Development",
@@ -45,10 +49,6 @@
     "frontend_creating_custom_panels": "Creating custom panels",
     "frontend_creating_custom_ui": "Creating custom UI",
     "frontend_index": "Frontend development",
-    "hass_core_events": "Using Events",
-    "hass_core_hass": "Hass object",
-    "hass_core_services": "Using Services",
-    "hass_core_states": "Using States",
     "hassio_addon_communication": "Add-On Communication",
     "hassio_addon_config": "Add-On Configuration",
     "hassio_addon_index": "Developing an add-on",
diff --git a/website/sidebars.json b/website/sidebars.json
index e1a3c167..71820149 100644
--- a/website/sidebars.json
+++ b/website/sidebars.json
@@ -26,7 +26,7 @@
       "development_catching_up",
       "development_validation"
     ],
-    "HASS Core methods": [
+    "Development 101": [
       "dev_101_index",
       "dev_101_hass",
       "dev_101_events",