diff --git a/check/contents/check_attributes_section.go b/check/contents/check_attributes_section.go
index acef545..99d20dc 100644
--- a/check/contents/check_attributes_section.go
+++ b/check/contents/check_attributes_section.go
@@ -41,18 +41,19 @@ func (d *Document) checkAttributesSection() error {
 	paragraphs := section.Paragraphs
 	expectedBylineTexts := []string{
 		"This resource exports the following attributes in addition to the arguments above:",
+		"This data source exports the following attributes in addition to the arguments above:",
 		"In addition to all arguments above, the following attributes are exported:",
 		"No additional attributes are exported.",
 	}
 
 	switch len(paragraphs) {
 	case 0:
-		return fmt.Errorf("attribute section byline should be: %q (preferred), %q or %q", expectedBylineTexts[0], expectedBylineTexts[1], expectedBylineTexts[2])
+		return fmt.Errorf("attribute section byline should be: %q, %q, %q, or %q", expectedBylineTexts[0], expectedBylineTexts[1], expectedBylineTexts[2], expectedBylineTexts[3])
 	case 1:
 		paragraphText := string(paragraphs[0].Text(d.source))
 
-		if paragraphText != expectedBylineTexts[0] && paragraphText != expectedBylineTexts[1] && paragraphText != expectedBylineTexts[2] {
-			return fmt.Errorf("attribute section byline (%s) should be: %q (preferred), %q or %q", paragraphText, expectedBylineTexts[0], expectedBylineTexts[1], expectedBylineTexts[2])
+		if paragraphText != expectedBylineTexts[0] && paragraphText != expectedBylineTexts[1] && paragraphText != expectedBylineTexts[2] && paragraphText != expectedBylineTexts[3] {
+			return fmt.Errorf("attribute section byline (%s) should be: %q, %q, %q, or %q", paragraphText, expectedBylineTexts[0], expectedBylineTexts[1], expectedBylineTexts[2], expectedBylineTexts[3])
 		}
 	}