diff --git a/tests/sequence/sync/ref/2.png b/tests/sequence/sync/ref/2.png
new file mode 100644
index 0000000..be21dc9
Binary files /dev/null and b/tests/sequence/sync/ref/2.png differ
diff --git a/tests/sequence/sync/test.typ b/tests/sequence/sync/test.typ
index 35098d8..fc69d7e 100644
--- a/tests/sequence/sync/test.typ
+++ b/tests/sequence/sync/test.typ
@@ -35,3 +35,13 @@
     _seq("b", "b")
   })
 })
+
+#pagebreak()
+
+#diagram({
+  _sync({
+    _seq("a", "b", comment: [Abcdefgh])
+    _seq("b", "c", comment: [Foo\ bar], slant: 10)
+    _seq("c", "c", slant: 20)
+  })
+})
\ No newline at end of file