diff --git a/test/over_react/component/lazy_test.dart b/test/over_react/component/lazy_test.dart
index 46954047f..21454cbd5 100644
--- a/test/over_react/component/lazy_test.dart
+++ b/test/over_react/component/lazy_test.dart
@@ -320,8 +320,8 @@ sharedNestedPropConversionTests(UiFactory<TestJsProps> builder, {bool isJsCompon
             // DDC error message
             matches(
                 RegExp(r"Expected a value of type 'Map[^']*', but got one of type '(Native|Legacy)JavaScriptObject'")),
-            // dart2js error message
-            matches(RegExp(r"type '(Unknown|Plain)JavaScriptObject' is not a subtype of type 'Map[^']*'")),
+            // Dart 2 dart2js, Dart 3 DDC error message
+            matches(RegExp(r"type '(Unknown|Plain|Legacy)JavaScriptObject' is not a subtype of type 'Map[^']*'")),
           )),
       ]);
       if (!isJsComponent) {
diff --git a/test/over_react/util/prop_conversion_test.dart b/test/over_react/util/prop_conversion_test.dart
index 13ca46d72..b53a46a07 100644
--- a/test/over_react/util/prop_conversion_test.dart
+++ b/test/over_react/util/prop_conversion_test.dart
@@ -1083,9 +1083,9 @@ main() {
               // DDC error message
               matches(RegExp(
                   r"Expected a value of type 'Map[^']*', but got one of type '(Native|Legacy)JavaScriptObject'")),
-              // dart2js error message
+              // Dart 2 dart2js, Dart 3 DDC error message
               matches(RegExp(
-                  r"type '(Unknown|Plain)JavaScriptObject' is not a subtype of type 'Map[^']*'")),
+                  r"type '(Unknown|Plain|Legacy)JavaScriptObject' is not a subtype of type 'Map[^']*'")),
             )),
           ]);