diff --git a/lib/ical/parse.js b/lib/ical/parse.js
index ae85fca7..e0b7dfa1 100644
--- a/lib/ical/parse.js
+++ b/lib/ical/parse.js
@@ -419,7 +419,9 @@ parse._parseParameters = function(line, start, designSet) {
       value = line.slice(valuePos, nextPos);
     }
 
+    const length_before = value.length;
     value = parse._rfc6868Escape(value);
+    valuePos += length_before - value.length;
     if (multiValue) {
       let delimiter = mvdelim || multiValue;
       value = parse._parseMultiValue(value, delimiter, type, [], null, designSet);
diff --git a/test/parser/property_params.ics b/test/parser/property_params.ics
index 522afdcb..e6c3697f 100644
--- a/test/parser/property_params.ics
+++ b/test/parser/property_params.ics
@@ -7,6 +7,7 @@ ATTENDEE;CN="Foo, Bar":mailto:foo3@bar
 ATTENDEE;CN="Foo; Bar":mailto:foo4@bar
 ATTENDEE;DELEGATED-TO="mailto:foo7@bar";CN="Foo, Bar":mailto:foo5@bar
 ATTENDEE;DELEGATED-TO="mailto:foo7@bar";CN="Foo; Bar":mailto:foo6@bar
+ATTENDEE;CN="^^Ж 4 <>\'^'^n:":mailto:foo9@bar
 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
diff --git a/test/parser/property_params.json b/test/parser/property_params.json
index 1ce9abeb..c5a6db4c 100644
--- a/test/parser/property_params.json
+++ b/test/parser/property_params.json
@@ -58,6 +58,14 @@
       "cal-address",
       "mailto:foo6@bar"
     ],
+    [
+      "attendee",
+      {
+        "cn": "^Ж 4 <>\\'\"\n:"
+      },
+      "cal-address",
+      "mailto:foo9@bar"
+    ],
     [
       "attendee",
       {