diff --git a/pdfbox-validation-model/src/main/java/org/verapdf/model/impl/pb/pd/PBoxPDMetadata.java b/pdfbox-validation-model/src/main/java/org/verapdf/model/impl/pb/pd/PBoxPDMetadata.java
index 04bdb435..4f763187 100644
--- a/pdfbox-validation-model/src/main/java/org/verapdf/model/impl/pb/pd/PBoxPDMetadata.java
+++ b/pdfbox-validation-model/src/main/java/org/verapdf/model/impl/pb/pd/PBoxPDMetadata.java
@@ -142,4 +142,9 @@ public static boolean isMetadataObject(COSBase obj) {
 				&& ((COSStream) obj).getCOSName(COSName.TYPE) == COSName.METADATA
 				&& ((COSStream) obj).getCOSName(COSName.SUBTYPE) == COSName.getPDFName("XML");
 	}
+
+	@Override
+	public Boolean getisCatalogMetadata() {
+		return isMainMetadata;
+	}
 }
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