diff --git a/src/librustdoc/html/render/tests.rs b/src/librustdoc/html/render/tests.rs
index abf5f05fe58ab..224c794fb3b4a 100644
--- a/src/librustdoc/html/render/tests.rs
+++ b/src/librustdoc/html/render/tests.rs
@@ -38,3 +38,14 @@ fn test_name_sorting() {
sorted.sort_by(|&l, r| compare_names(l, r));
assert_eq!(names, sorted);
}
+
+#[test]
+fn test_all_types_prints_header_once() {
+ // Regression test for #82477
+ let all_types = AllTypes::new();
+
+ let mut buffer = Buffer::new();
+ all_types.print(&mut buffer);
+
+ assert_eq!(1, buffer.into_inner().matches("List of all items").count());
+}