diff --git a/classes/admin.php b/classes/admin.php
index fe3bf1ac..00b4acae 100644
--- a/classes/admin.php
+++ b/classes/admin.php
@@ -1436,7 +1436,7 @@ class Admin
                         'data' => $data]));
 
                 $page->header($header);
-                $page->frontmatter(Yaml::dump((array)$page->header(), 10, 2, false));
+                $page->frontmatter(Yaml::dump((array)$page->header(), 20));
             } else {
                 // Find out the type by looking at the parent.
                 $type = $parent->childType()
diff --git a/classes/admincontroller.php b/classes/admincontroller.php
index bc256290..48970931 100644
--- a/classes/admincontroller.php
+++ b/classes/admincontroller.php
@@ -1871,7 +1871,7 @@ class AdminController extends AdminBaseController
                 });
             }
             $page->header((object)$header);
-            $page->frontmatter(Yaml::dump((array)$page->header()));
+            $page->frontmatter(Yaml::dump((array)$page->header()), 20);
         }
         // Fill content last because it also renders the output.
         if (isset($input['content'])) {