diff --git a/tests/test_vcz.py b/tests/test_vcz.py
index e1787e1..ab01cc5 100644
--- a/tests/test_vcz.py
+++ b/tests/test_vcz.py
@@ -295,7 +295,8 @@ def test_variant_contig(self, schema):
             "shape": (9,),
             "chunks": (10000,),
             "dimensions": ("variants",),
-            "description": "An identifier from the reference genome",
+            "description": "An identifier from the reference genome or an "
+            "angle-bracketed ID string pointing to a contig in the assembly file",
             "vcf_field": None,
             "compressor": {
                 "id": "blosc",