diff --git a/test/built-ins/Temporal/ZonedDateTime/from/argument-propertybag-ignores-incorrect-properties.js b/test/built-ins/Temporal/ZonedDateTime/from/argument-propertybag-ignores-incorrect-properties.js
index aa3e9a3677..53a2fb41c6 100644
--- a/test/built-ins/Temporal/ZonedDateTime/from/argument-propertybag-ignores-incorrect-properties.js
+++ b/test/built-ins/Temporal/ZonedDateTime/from/argument-propertybag-ignores-incorrect-properties.js
@@ -11,7 +11,6 @@ features: [Temporal]
 // "1976-11-18T00:00:00+01:00[+01:00]"
 const expected = new Temporal.ZonedDateTime(217119600000000000n, "+01:00");
 
-// can be constructed with monthCode and without month
 TemporalHelpers.assertZonedDateTimesEqual(Temporal.ZonedDateTime.from({
     year: 1976,
     month: 11,
diff --git a/test/built-ins/Temporal/ZonedDateTime/from/argument-propertybag-required-correctly-spelled-properties.js b/test/built-ins/Temporal/ZonedDateTime/from/argument-propertybag-required-correctly-spelled-properties.js
index 033b77b69b..bea851c550 100644
--- a/test/built-ins/Temporal/ZonedDateTime/from/argument-propertybag-required-correctly-spelled-properties.js
+++ b/test/built-ins/Temporal/ZonedDateTime/from/argument-propertybag-required-correctly-spelled-properties.js
@@ -14,3 +14,22 @@ assert.throws(TypeError, () => Temporal.ZonedDateTime.from({
   days: 18,
   timeZone: "+01:00"
 }));
+assert.throws(TypeError, () => Temporal.ZonedDateTime.from({
+  years: 1976,
+  months: 11,
+  day: 18,
+  timeZone: "+01:00"
+}));
+assert.throws(TypeError, () => Temporal.ZonedDateTime.from({
+  year: 1976,
+  months: 11,
+  days: 18,
+  timeZone: "+01:00"
+}));
+assert.throws(TypeError, () => Temporal.ZonedDateTime.from({
+  years: 1976,
+  month: 11,
+  days: 18,
+  timeZone: "+01:00"
+}));
+
diff --git a/test/built-ins/Temporal/ZonedDateTime/from/argument-propertybag-required-prop-undefined-throws.js b/test/built-ins/Temporal/ZonedDateTime/from/argument-propertybag-required-prop-undefined-throws.js
index 794c16db59..698e2598f8 100644
--- a/test/built-ins/Temporal/ZonedDateTime/from/argument-propertybag-required-prop-undefined-throws.js
+++ b/test/built-ins/Temporal/ZonedDateTime/from/argument-propertybag-required-prop-undefined-throws.js
@@ -3,11 +3,10 @@
 
 /*---
 esid: sec-temporal.zoneddatetime.from
-description: Temporal.ZonedDateTime.from({}) throws.
+description: from() throws if a required property is undefined.
 features: [Temporal]
 ---*/
 
-// Temporal.ZonedDateTime.from(required prop undefined) throws
 assert.throws(TypeError, () => Temporal.ZonedDateTime.from({
   year: 1976,
   month: undefined,