diff --git a/core/renderers/zelos/constants.ts b/core/renderers/zelos/constants.ts
index 8cd36e02589..e035b6681a9 100644
--- a/core/renderers/zelos/constants.ts
+++ b/core/renderers/zelos/constants.ts
@@ -825,7 +825,8 @@ export class ConstantProvider extends BaseConstantProvider {
         `pt ${this.FIELD_TEXT_FONTFAMILY};`,
       `}`,
 
-      `${selector} .blocklyTextInputBubble textarea {`,
+      // Comments.
+      `${selector} .blocklyCommentText {`,
       `font-weight: normal;`,
       `}`,