diff --git a/pkg/analysis_server/lib/src/services/completion/dart/arglist_contributor.dart b/pkg/analysis_server/lib/src/services/completion/dart/arglist_contributor.dart
index a6ff620..21f5f37 100644
--- a/pkg/analysis_server/lib/src/services/completion/dart/arglist_contributor.dart
+++ b/pkg/analysis_server/lib/src/services/completion/dart/arglist_contributor.dart
@@ -7,6 +7,7 @@
 import 'package:analysis_server/src/services/completion/dart/completion_manager.dart';
 import 'package:analysis_server/src/services/completion/dart/suggestion_builder.dart';
 import 'package:analysis_server/src/utilities/flutter.dart';
+import 'package:analyzer/dart/analysis/features.dart';
 import 'package:analyzer/dart/ast/ast.dart';
 import 'package:analyzer/dart/ast/token.dart';
 import 'package:analyzer/dart/element/element.dart';
@@ -100,7 +101,9 @@
     if (_isEditingNamedArgLabel() ||
         _isAppendingToArgList() ||
         _isAddingLabelToPositional()) {
-      if (requiredCount == 0 || requiredCount < _argCount()) {
+      if (request.featureSet.isEnabled(Feature.named_arguments_anywhere) ||
+          requiredCount == 0 ||
+          requiredCount < _argCount()) {
         // If there's a replacement range that starts at the caret, it will be
         // for an identifier that is not the named label and therefore it should
         // not be replaced.
diff --git a/pkg/analysis_server/test/services/completion/dart/arglist_contributor_test.dart b/pkg/analysis_server/test/services/completion/dart/arglist_contributor_test.dart
index 4c2e182..c2d8833 100644
--- a/pkg/analysis_server/test/services/completion/dart/arglist_contributor_test.dart
+++ b/pkg/analysis_server/test/services/completion/dart/arglist_contributor_test.dart
@@ -172,6 +172,15 @@
     assertSuggestArgumentsAndTypes(namedArgumentsWithTypes: {'one': 'int'});
   }
 
+  Future<void> test_Annotation_local_constructor_named_param_12() async {
+    addTestSource('''
+class A { const A(int one, int two, int three, {int four, String five:
+  'defaultValue'}); }
+@A(1, ^, 3) main() { }''');
+    await computeSuggestions();
+    assertSuggestions(['four: ', 'five: ']);
+  }
+
   Future<void> test_Annotation_local_constructor_named_param_2() async {
     addTestSource('''
 class A { const A({int one, String two: 'defaultValue'}); }
@@ -239,6 +248,7 @@
 
   Future<void> test_Annotation_local_constructor_named_param_negative() async {
     addTestSource('''
+// @dart = 2.15
 class A { const A(int one, int two, int three, {int four, String five:
   'defaultValue'}); }
 @A(1, ^, 3) main() { }''');
@@ -660,6 +670,7 @@
       expect(String arg1, int arg2, {bool arg3}) { }
       void baz() { }''');
     addTestSource('''
+      // @dart = 2.15
       import 'a.dart'
       class B { }
       String bar() => true;
@@ -676,6 +687,7 @@
       expect(String arg1, int arg2, {bool arg3}) { }
       void baz() { }''');
     addTestSource('''
+      // @dart = 2.15
       import 'a.dart'
       class B { }
       String bar() => true;
@@ -692,6 +704,7 @@
       expect(String arg1, int arg2, {bool arg3}) { }
       void baz() { }''');
     addTestSource('''
+      // @dart = 2.15
       import 'a.dart'
       class B { }
       String bar() => true;
@@ -708,6 +721,7 @@
       expect(String arg1, int arg2, {bool arg3}) { }
       void baz() { }''');
     addTestSource('''
+      // @dart = 2.15
       import 'a.dart'
       class B { }
       String bar() => true;
@@ -987,6 +1001,7 @@
   Future<void> test_ArgumentList_local_function_3a() async {
     // ArgumentList  MethodInvocation  ExpressionStatement  Block
     addTestSource('''
+      // @dart = 2.15
       expect(arg1, int arg2, {bool arg3}) { }
       class B { }
       String bar() => true;
@@ -998,6 +1013,7 @@
   Future<void> test_ArgumentList_local_function_3b() async {
     // ArgumentList  MethodInvocation  ExpressionStatement  Block
     addTestSource('''
+      // @dart = 2.15
       expect(arg1, int arg2, {bool arg3}) { }
       class B { }
       String bar() => true;
@@ -1009,6 +1025,7 @@
   Future<void> test_ArgumentList_local_function_3c() async {
     // ArgumentList  MethodInvocation  ExpressionStatement  Block
     addTestSource('''
+      // @dart = 2.15
       expect(arg1, int arg2, {bool arg3}) { }
       class B { }
       String bar() => true;
@@ -1020,6 +1037,7 @@
   Future<void> test_ArgumentList_local_function_3d() async {
     // ArgumentList  MethodInvocation  ExpressionStatement  Block
     addTestSource('''
+      // @dart = 2.15
       expect(arg1, int arg2, {bool arg3}) { }
       class B { }
       String bar() => true;