diff --git a/layoutparser-service/viewer-doc-processor/src/main/java/com/knecon/fforesight/service/viewerdoc/service/PDFTronViewerDocumentService.java b/layoutparser-service/viewer-doc-processor/src/main/java/com/knecon/fforesight/service/viewerdoc/service/PDFTronViewerDocumentService.java
index 89fa08a..e0e9bc5 100644
--- a/layoutparser-service/viewer-doc-processor/src/main/java/com/knecon/fforesight/service/viewerdoc/service/PDFTronViewerDocumentService.java
+++ b/layoutparser-service/viewer-doc-processor/src/main/java/com/knecon/fforesight/service/viewerdoc/service/PDFTronViewerDocumentService.java
@@ -140,7 +140,7 @@ public class PDFTronViewerDocumentService {
                 .map(LayerGroup::getVisualizations)
                 .flatMap(Collection::stream)
                 .map(Visualizations::getLayer)
-                .map(LayerIdentifier::name)
+                .map(LayerIdentifier::markedContentName)
                 .collect(Collectors.toSet());
     }