3021431.diff

diff --git a/src/Plugin/CKEditorPlugin/CodeSnippet.php b/src/Plugin/CKEditorPlugin/CodeSnippet.php
index 4cf9ab096ebdc001aaaeb918875e4af525cd001f..d5693bb409ecdec6aab495c88fc6fb799bbb0844 100644
--- a/src/Plugin/CKEditorPlugin/CodeSnippet.php
+++ b/src/Plugin/CKEditorPlugin/CodeSnippet.php
@@ -182,6 +182,7 @@ class CodeSnippet extends CKEditorPluginBase implements CKEditorPluginConfigurab
       'vbscript' => 'VBScript',
       'xhtml' => 'XHTML',
       'xml' => 'XML',
+      'yaml' => 'Yaml',
     ];
   }