diff --git a/LanguageFeatures/Patterns/map_A01_t01.dart b/LanguageFeatures/Patterns/map_A01_t01.dart
index db327b57c6..9fc06872e8 100644
--- a/LanguageFeatures/Patterns/map_A01_t01.dart
+++ b/LanguageFeatures/Patterns/map_A01_t01.dart
@@ -67,7 +67,7 @@ String test(Map map) {
     {11: <String, String>{"1": _}} => "map-2",
     {12: (var x,)} => "record-1",
     {12: (42, x: 0)} => "record-2",
-    {13: Square(size: Unit(1))} => "object",
+    {13: Square(size: const Unit(1))} => "object",
     _ => "default"
   };
 }
diff --git a/LanguageFeatures/Patterns/map_A01_t02.dart b/LanguageFeatures/Patterns/map_A01_t02.dart
index 07ee306aa1..dcbd5a6089 100644
--- a/LanguageFeatures/Patterns/map_A01_t02.dart
+++ b/LanguageFeatures/Patterns/map_A01_t02.dart
@@ -86,7 +86,7 @@ String test(Map map) {
       return "record-1";
     case {12: (42, x: 0)}:
       return "record-2";
-    case {13: Square(size: Unit(1))}:
+    case {13: Square(size: const Unit(1))}:
       return "object";
     default:
       return "default";
diff --git a/LanguageFeatures/Patterns/map_A01_t03.dart b/LanguageFeatures/Patterns/map_A01_t03.dart
index a088a985a8..6650de4368 100644
--- a/LanguageFeatures/Patterns/map_A01_t03.dart
+++ b/LanguageFeatures/Patterns/map_A01_t03.dart
@@ -104,7 +104,7 @@ String test(Map map) {
   if (map case {12: (42, x: 0)}) {
     return "record-2";
   }
-  if (map case {13: Square(size: Unit(1))}) {
+  if (map case {13: Square(size: const Unit(1))}) {
     return "object";
   }
   return "default";