diff --git a/CHANGELOG.md b/CHANGELOG.md
index ad884c0..72860d5 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,4 +1,4 @@
-## 0.1.4+1
+## 0.1.4+2
 
 * separate implementation to allow dart:html compilation.
 
diff --git a/lib/src/argon2_ffi_base.dart b/lib/src/argon2_ffi_base.dart
index e187992..abba463 100644
--- a/lib/src/argon2_ffi_base.dart
+++ b/lib/src/argon2_ffi_base.dart
@@ -1,5 +1,7 @@
 import 'dart:typed_data';
 
+typedef ResolveLibrary = String Function(String baseName);
+
 abstract class Argon2 {
   /// forces loading of dynamic library on MacOS instead of assuming
   /// argon2 was statically linked. (ie. flutter usage, vs dart usage)
diff --git a/lib/src/argon2_ffi_impl.dart b/lib/src/argon2_ffi_impl.dart
index 89249e1..cef10b8 100644
--- a/lib/src/argon2_ffi_impl.dart
+++ b/lib/src/argon2_ffi_impl.dart
@@ -38,8 +38,6 @@ typedef Argon2Hash = Pointer<Utf8> Function(
   int version,
 );
 
-typedef ResolveLibrary = String Function(String baseName);
-
 abstract class Argon2Base extends Argon2 {
 //  @protected
   Argon2Hash get argon2hash;
diff --git a/lib/src/argon2_ffi_noop.dart b/lib/src/argon2_ffi_noop.dart
index 556c268..45d1e5c 100644
--- a/lib/src/argon2_ffi_noop.dart
+++ b/lib/src/argon2_ffi_noop.dart
@@ -3,6 +3,9 @@ import 'dart:typed_data';
 import 'package:argon2_ffi_base/src/argon2_ffi_base.dart';
 
 class Argon2FfiFlutter extends Argon2 {
+  // ignore: avoid_unused_constructor_parameters
+  Argon2FfiFlutter({ResolveLibrary resolveLibrary});
+
   @override
   Uint8List argon2(Argon2Arguments args) {
     throw UnimplementedError();
diff --git a/pubspec.yaml b/pubspec.yaml
index 6415200..6a9c861 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -1,6 +1,6 @@
 name: argon2_ffi_base
 description: Base package defining the interface for an Argon2 implementation.
-version: 0.1.4+1
+version: 0.1.4+2
 homepage: https://github.com/authpass/argon2_ffi_base
 
 environment: