diff --git a/plugins/editors/tinymce/src/PluginTraits/DisplayTrait.php b/plugins/editors/tinymce/src/PluginTraits/DisplayTrait.php
index 2dff205a86d62..29f3535c17d48 100644
--- a/plugins/editors/tinymce/src/PluginTraits/DisplayTrait.php
+++ b/plugins/editors/tinymce/src/PluginTraits/DisplayTrait.php
@@ -464,10 +464,10 @@ public function display(string $name, string $content = '', array $attributes =
 
         if ($levelParams->get('newlines')) {
             // Break
-            $scriptOptions['force_br_newlines'] = true;
+            $scriptOptions['newline_behavior'] = 'invert';
         } else {
             // Paragraph
-            $scriptOptions['force_br_newlines'] = false;
+            $scriptOptions['newline_behavior']  = 'default';
             $scriptOptions['forced_root_block'] = 'p';
         }