diff --git a/code/Controllers/LeftAndMainPageIconsExtension.php b/code/Controllers/LeftAndMainPageIconsExtension.php
index e962322f06..ed0e7e69fd 100644
--- a/code/Controllers/LeftAndMainPageIconsExtension.php
+++ b/code/Controllers/LeftAndMainPageIconsExtension.php
@@ -26,7 +26,7 @@ class LeftAndMainPageIconsExtension extends Extension implements Flushable
      * @throws InvalidArgumentException
      * @throws ReflectionException
      */
-    public function init()
+    protected function onInit()
     {
         Requirements::customCSS($this->generatePageIconsCss(), CMSMain::PAGE_ICONS_ID);
     }
diff --git a/code/Model/SiteTree.php b/code/Model/SiteTree.php
index 5d33539ad7..2aa0815299 100755
--- a/code/Model/SiteTree.php
+++ b/code/Model/SiteTree.php
@@ -1509,7 +1509,7 @@ public function MetaComponents()
             ];
         }
 
-        $this->extend('MetaComponents', $tags);
+        $this->extend('updateMetaComponents', $tags);
 
         return $tags;
     }
@@ -1613,7 +1613,7 @@ public function MetaTags($includeTitle = true)
             $tagString .= $this->obj('ExtraMeta')->forTemplate();
         }
 
-        $this->extend('MetaTags', $tagString);
+        $this->extend('updateMetaTags', $tagString);
 
         return $tagString;
     }