diff --git a/source/pdf/pdf-annot.c b/source/pdf/pdf-annot.c
index 0e0c8ac998..89680fb792 100644
--- a/source/pdf/pdf-annot.c
+++ b/source/pdf/pdf-annot.c
@@ -989,6 +989,7 @@ static pdf_obj *interior_color_subtypes[] = {
 	PDF_NAME(Line),
 	PDF_NAME(PolyLine),
 	PDF_NAME(Polygon),
+	PDF_NAME(Redact),
 	PDF_NAME(Square),
 	NULL,
 };