diff --git a/docs/development/test-vectors.rst b/docs/development/test-vectors.rst
index aaf03f0..4c048ab 100644
--- a/docs/development/test-vectors.rst
+++ b/docs/development/test-vectors.rst
@@ -97,6 +97,9 @@
   attribute type from :rfc:`5280`.
 * ``unsupported_subject_name.pem`` - An RSA 2048 bit self-signed CA certificate
   generated using OpenSSL that contains the unsupported "initials" name.
+* ``utf8_common_name.pem`` - An RSA 2048 bit self-signed CA certificate
+  generated using OpenSSL that contains a UTF8String common name with the value
+  "We heart UTF8!™".
 
 Hashes
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