diff --git a/internal/catalog/diff_test.go b/internal/catalog/diff_test.go
index 30f6f26..e2b0c0e 100644
--- a/internal/catalog/diff_test.go
+++ b/internal/catalog/diff_test.go
@@ -381,8 +381,8 @@ func TestNormalizeKeepsMissingSourceDistinctFromLineZero(t *testing.T) {
 		t.Errorf("manifest location lost: %+v", anchor)
 	}
 
-	zero := Resource{Type: "File", Title: "/a", Line: intPtr(0)}
-	if !zero.HasSource() && zero.File != "" {
+	zero := Resource{Type: "File", Title: "/a", File: "site.pp", Line: intPtr(0)}
+	if !zero.HasSource() {
 		t.Error("line 0 with a file is a real location")
 	}
 }