diff --git a/pkg/front_end/lib/src/kernel/resolver.dart b/pkg/front_end/lib/src/kernel/resolver.dart
index 796bc3fb450..dc9b15904f8 100644
--- a/pkg/front_end/lib/src/kernel/resolver.dart
+++ b/pkg/front_end/lib/src/kernel/resolver.dart
@@ -721,9 +721,8 @@ class Resolver {
           internalThisVariable: internalThisVariable,
           forPrimaryConstructor: true,
         );
-
-        context.performBacklog(result.annotations);
       }
+      context.performBacklog(result.annotations);
     }
     // Coverage-ignore(suite): Not run.
     on DebugAbort {
diff --git a/pkg/front_end/testcases/dart2js/primary_constructors/parameter_annotation.dart b/pkg/front_end/testcases/dart2js/primary_constructors/parameter_annotation.dart
new file mode 100644
index 00000000000..213014243f6
--- /dev/null
+++ b/pkg/front_end/testcases/dart2js/primary_constructors/parameter_annotation.dart
@@ -0,0 +1,13 @@
+// Copyright (c) 2026, the Dart project authors.  Please see the AUTHORS file
+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+
+class const Self();
+
+class Base {
+  Base(int x);
+}
+
+class MyComponent(@Self() final int? x) extends Base {
+  this : super(42);
+}
diff --git a/pkg/front_end/testcases/dart2js/primary_constructors/parameter_annotation.dart.strong.expect b/pkg/front_end/testcases/dart2js/primary_constructors/parameter_annotation.dart.strong.expect
new file mode 100644
index 00000000000..2ede27c910e
--- /dev/null
+++ b/pkg/front_end/testcases/dart2js/primary_constructors/parameter_annotation.dart.strong.expect
@@ -0,0 +1,36 @@
+library;
+import self as self;
+import "dart:core" as core;
+
+class Self extends core::Object /*hasConstConstructor*/  {
+  const constructor •() → self::Self
+    : super core::Object::•()
+    ;
+  static synthetic method _#new#tearOff() → self::Self
+    return new self::Self::•();
+}
+class Base extends core::Object {
+  constructor •(core::int x) → self::Base
+    : super core::Object::•()
+    ;
+  static synthetic method _#new#tearOff(core::int x) → self::Base
+    return new self::Base::•(x);
+}
+class MyComponent extends self::Base {
+  final field core::int? x;
+  constructor •(@#C1 final initializing-formal core::int? x) → self::MyComponent
+    : self::MyComponent::x = x, super self::Base::•(42)
+    ;
+  static synthetic method _#new#tearOff(core::int? x) → self::MyComponent
+    return new self::MyComponent::•(x);
+}
+
+constants  {
+  #C1 = self::Self {}
+}
+
+
+Constructor coverage from constants:
+org-dartlang-testcase:///parameter_annotation.dart:
+- Self. (from org-dartlang-testcase:///parameter_annotation.dart:5:17)
+- Object. (from org-dartlang-sdk:///lib/core/object.dart)
diff --git a/pkg/front_end/testcases/dart2js/primary_constructors/parameter_annotation.dart.strong.modular.expect b/pkg/front_end/testcases/dart2js/primary_constructors/parameter_annotation.dart.strong.modular.expect
new file mode 100644
index 00000000000..2ede27c910e
--- /dev/null
+++ b/pkg/front_end/testcases/dart2js/primary_constructors/parameter_annotation.dart.strong.modular.expect
@@ -0,0 +1,36 @@
+library;
+import self as self;
+import "dart:core" as core;
+
+class Self extends core::Object /*hasConstConstructor*/  {
+  const constructor •() → self::Self
+    : super core::Object::•()
+    ;
+  static synthetic method _#new#tearOff() → self::Self
+    return new self::Self::•();
+}
+class Base extends core::Object {
+  constructor •(core::int x) → self::Base
+    : super core::Object::•()
+    ;
+  static synthetic method _#new#tearOff(core::int x) → self::Base
+    return new self::Base::•(x);
+}
+class MyComponent extends self::Base {
+  final field core::int? x;
+  constructor •(@#C1 final initializing-formal core::int? x) → self::MyComponent
+    : self::MyComponent::x = x, super self::Base::•(42)
+    ;
+  static synthetic method _#new#tearOff(core::int? x) → self::MyComponent
+    return new self::MyComponent::•(x);
+}
+
+constants  {
+  #C1 = self::Self {}
+}
+
+
+Constructor coverage from constants:
+org-dartlang-testcase:///parameter_annotation.dart:
+- Self. (from org-dartlang-testcase:///parameter_annotation.dart:5:17)
+- Object. (from org-dartlang-sdk:///lib/core/object.dart)
diff --git a/pkg/front_end/testcases/dart2js/primary_constructors/parameter_annotation.dart.strong.outline.expect b/pkg/front_end/testcases/dart2js/primary_constructors/parameter_annotation.dart.strong.outline.expect
new file mode 100644
index 00000000000..12c06f4f931
--- /dev/null
+++ b/pkg/front_end/testcases/dart2js/primary_constructors/parameter_annotation.dart.strong.outline.expect
@@ -0,0 +1,24 @@
+library;
+import self as self;
+import "dart:core" as core;
+
+class Self extends core::Object /*hasConstConstructor*/  {
+  const constructor •() → self::Self
+    : super core::Object::•()
+    ;
+  static synthetic method _#new#tearOff() → self::Self
+    return new self::Self::•();
+}
+class Base extends core::Object {
+  constructor •(core::int x) → self::Base
+    ;
+  static synthetic method _#new#tearOff(core::int x) → self::Base
+    return new self::Base::•(x);
+}
+class MyComponent extends self::Base {
+  final field core::int? x;
+  constructor •(final initializing-formal core::int? x) → self::MyComponent
+    ;
+  static synthetic method _#new#tearOff(core::int? x) → self::MyComponent
+    return new self::MyComponent::•(x);
+}
diff --git a/pkg/front_end/testcases/dart2js/primary_constructors/parameter_annotation.dart.strong.transformed.expect b/pkg/front_end/testcases/dart2js/primary_constructors/parameter_annotation.dart.strong.transformed.expect
new file mode 100644
index 00000000000..2ede27c910e
--- /dev/null
+++ b/pkg/front_end/testcases/dart2js/primary_constructors/parameter_annotation.dart.strong.transformed.expect
@@ -0,0 +1,36 @@
+library;
+import self as self;
+import "dart:core" as core;
+
+class Self extends core::Object /*hasConstConstructor*/  {
+  const constructor •() → self::Self
+    : super core::Object::•()
+    ;
+  static synthetic method _#new#tearOff() → self::Self
+    return new self::Self::•();
+}
+class Base extends core::Object {
+  constructor •(core::int x) → self::Base
+    : super core::Object::•()
+    ;
+  static synthetic method _#new#tearOff(core::int x) → self::Base
+    return new self::Base::•(x);
+}
+class MyComponent extends self::Base {
+  final field core::int? x;
+  constructor •(@#C1 final initializing-formal core::int? x) → self::MyComponent
+    : self::MyComponent::x = x, super self::Base::•(42)
+    ;
+  static synthetic method _#new#tearOff(core::int? x) → self::MyComponent
+    return new self::MyComponent::•(x);
+}
+
+constants  {
+  #C1 = self::Self {}
+}
+
+
+Constructor coverage from constants:
+org-dartlang-testcase:///parameter_annotation.dart:
+- Self. (from org-dartlang-testcase:///parameter_annotation.dart:5:17)
+- Object. (from org-dartlang-sdk:///lib/core/object.dart)
diff --git a/pkg/front_end/testcases/dart2js/primary_constructors/parameter_annotation.dart.textual_outline.expect b/pkg/front_end/testcases/dart2js/primary_constructors/parameter_annotation.dart.textual_outline.expect
new file mode 100644
index 00000000000..46c6b312aab
--- /dev/null
+++ b/pkg/front_end/testcases/dart2js/primary_constructors/parameter_annotation.dart.textual_outline.expect
@@ -0,0 +1,9 @@
+class const Self();
+
+class Base {
+  Base(int x);
+}
+
+class MyComponent(@Self() final int? x) extends Base {
+  this : super(42);
+}
diff --git a/pkg/front_end/testcases/dart2js/primary_constructors/parameter_annotation.dart.textual_outline_modelled.expect b/pkg/front_end/testcases/dart2js/primary_constructors/parameter_annotation.dart.textual_outline_modelled.expect
new file mode 100644
index 00000000000..c73d56dbd87
--- /dev/null
+++ b/pkg/front_end/testcases/dart2js/primary_constructors/parameter_annotation.dart.textual_outline_modelled.expect
@@ -0,0 +1,9 @@
+class Base {
+  Base(int x);
+}
+
+class MyComponent(@Self() final int? x) extends Base {
+  this : super(42);
+}
+
+class const Self();