diff --git a/src/UglyToad.PdfPig.Tests/PublicApiScannerTests.cs b/src/UglyToad.PdfPig.Tests/PublicApiScannerTests.cs
index be70c815..5d4351c0 100644
--- a/src/UglyToad.PdfPig.Tests/PublicApiScannerTests.cs
+++ b/src/UglyToad.PdfPig.Tests/PublicApiScannerTests.cs
@@ -76,6 +76,8 @@
                 "UglyToad.PdfPig.Content.PageRotationDegrees",
                 "UglyToad.PdfPig.Content.PageSize",
                 "UglyToad.PdfPig.Content.PageTreeNode",
+                "UglyToad.PdfPig.Content.PdfMarkedContent",
+                "UglyToad.PdfPig.Content.PdfArtifactMarkedContent",
                 "UglyToad.PdfPig.Content.Word",
                 "UglyToad.PdfPig.Content.TextDirection",
                 "UglyToad.PdfPig.Content.XmpMetadata",