diff --git a/test/certs/ext-allowedAttributeAssignments.pem b/test/certs/ext-allowedAttributeAssignments.pem
new file mode 100644
index 0000000000..e5d95d1130
--- /dev/null
+++ b/test/certs/ext-allowedAttributeAssignments.pem
@@ -0,0 +1,12 @@
+-----BEGIN CERTIFICATE-----
+MIIBtzCCAaOgAwIBAgIDAQIDMAsGCSqGSIb3DQEBBTAAMCIYDzIwMjEwODMxMDIz
+NDU4WhgPMjAyMTA4MzEwMjM0NThaMAAwggEgMAsGCSqGSIb3DQEBAQOCAQ8AMIIB
+CgKCAQEAtnjLm1ts1hC4fNNt3UnQD9y73bDXgioTyWYSI3ca/KNfuTydjFTEYAmq
+nuGrBOUfgbmH3PRQ0AmpqljgWTb3d3K8H4UFvDWQTPSS21IMjm8oqd19nE5GxWir
+Gu0oDRzhWLHe1RZ7ZrohCPg/1Ocsy47QZuK2laFB0rEmrRWBmEYbDl3/wxf5XfqI
+qpOynJB02thXrTCcTM7Rz1FqCFt/ZVZB5hKY2S+CTdE9OIVKlr4WHMfuvUYeOj06
+GkwLFJHNv2tU+tovI3mYRxUuY4UupkS3MC+Otey7XKm1P+INjWWoegm6iCAt3Vus
+pVz+6pU2xgl3nrAVMQHB4fReQPH0pQIDAQABoz4wPDA6BgNVHUMEMzExMC+gBYAD
+VQQDoSaBJGpvbmF0aGFuLndpbGJ1ckB3aWxkYm9hcnNvZnR3YXJlLmNvbTALBgkq
+hkiG9w0BAQUDAQA=
+-----END CERTIFICATE-----
diff --git a/test/recipes/25-test_x509.t b/test/recipes/25-test_x509.t
index 0687c81ca9..7117e3381e 100644
--- a/test/recipes/25-test_x509.t
+++ b/test/recipes/25-test_x509.t
@@ -16,7 +16,7 @@ use OpenSSL::Test qw/:DEFAULT srctop_file/;
 
 setup("test_x509");
 
-plan tests => 124;
+plan tests => 126;
 
 # Prevent MSys2 filename munging for arguments that look like file paths but
 # aren't
@@ -400,6 +400,13 @@ cert_contains($attr_map_cert,
 cert_contains($attr_map_cert,
               "commonName:asdf == localityName:03:3E",
               1, 'X.509 Attribute Mappings');
+my $aaa_cert = srctop_file(@certs, "ext-allowedAttributeAssignments.pem");
+cert_contains($aaa_cert,
+              "Attribute Type: commonName",
+              1, 'X.509 Allowed Attribute Assignments');
+cert_contains($aaa_cert,
+              "Holder Domain: email:jonathan.wilbur",
+              1, 'X.509 Allowed Attribute Assignments');
 
 sub test_errors { # actually tests diagnostics of OSSL_STORE
     my ($expected, $cert, @opts) = @_;