1 files changed, 4 insertions, 0 deletions
diff --git a/app/assets/javascripts/content_editor/extensions/code_block_highlight.js b/app/assets/javascripts/content_editor/extensions/code_block_highlight.js
index 27432b1e18b..1d85bfcc965 100644
--- a/app/assets/javascripts/content_editor/extensions/code_block_highlight.js
+++ b/app/assets/javascripts/content_editor/extensions/code_block_highlight.js
@@ -23,6 +23,10 @@ export default CodeBlockLowlight.extend({
         // eslint-disable-next-line @gitlab/require-i18n-strings
         default: 'code highlight',
       },
+      langParams: {
+        default: null,
+        parseHTML: (element) => element.dataset.langParams,
+      },
     };
   },
   addInputRules() {