diff --git a/tests/test_highlighter.py b/tests/test_highlighter.py
index 9905c92b..c4489f37 100644
--- a/tests/test_highlighter.py
+++ b/tests/test_highlighter.py
@@ -33,11 +33,21 @@ highlight_tests = [
     (
         "<foo: 23>",
         [
-            Span(0, 1, 'repr.tag_start'),
-            Span(1, 5, 'repr.tag_name'),
-            Span(5, 8, 'repr.tag_contents'),
-            Span(8, 9, 'repr.tag_end'),
-            Span(6, 8, 'repr.number')
+            Span(0, 1, "repr.tag_start"),
+            Span(1, 5, "repr.tag_name"),
+            Span(5, 8, "repr.tag_contents"),
+            Span(8, 9, "repr.tag_end"),
+            Span(6, 8, "repr.number")
+        ]
+    ),
+    (
+        "<foo: <bar: 23>>",
+        [
+            Span(0, 1, "repr.tag_start"),
+            Span(1, 5, "repr.tag_name"),
+            Span(5, 15, "repr.tag_contents"),
+            Span(15, 16, "repr.tag_end"),
+            Span(12, 14, "repr.number")
         ]
     ),
     (