diff --git a/test/parser/property_params.ics b/test/parser/property_params.ics
index e6c3697f..bb2544f0 100644
--- a/test/parser/property_params.ics
+++ b/test/parser/property_params.ics
@@ -12,6 +12,7 @@ ATTENDEE;ROLE="REQ-PARTICIPANT;foo";DELEGATED-FROM="mailto:bar@baz.com";PAR
  TSTAT=ACCEPTED;RSVP=TRUE:mailto:foo@bar.com
 ATTENDEE;CN=X\:mailto:x@example.org
 ATTENDEE;CN="Y\":mailto:y@example.org
+ATTENDEE;CN="Z\;":mailto:z@example.org
 X-FOO;PARAM1=VAL1:FOO;BAR
 X-FOO2;PARAM1=VAL1;PARAM2=VAL2:FOO;BAR
 X-BAR;PARAM1="VAL1:FOO":BAZ;BAR
diff --git a/test/parser/property_params.json b/test/parser/property_params.json
index c5a6db4c..f1a4e2b3 100644
--- a/test/parser/property_params.json
+++ b/test/parser/property_params.json
@@ -93,6 +93,14 @@
       "cal-address",
       "mailto:y@example.org"
     ],
+    [
+      "attendee",
+      {
+        "cn": "Z\\;"
+      },
+      "cal-address",
+      "mailto:z@example.org"
+    ],
     [
       "x-foo",
       {