diff --git a/packages/web/components/templates/article/PdfArticleContainer.tsx b/packages/web/components/templates/article/PdfArticleContainer.tsx
index 5e15454ef..7146c334f 100644
--- a/packages/web/components/templates/article/PdfArticleContainer.tsx
+++ b/packages/web/components/templates/article/PdfArticleContainer.tsx
@@ -355,7 +355,7 @@ export default function PdfArticleContainer(
               overlapHighlightIdList: mergedIds.toArray(),
             })
             if (result) {
-              props.article.highlights.push(result)
+              highlightsRef.current.push(result)
             }
           }
         }