diff --git a/dwds/lib/src/utilities/sdk_configuration.dart b/dwds/lib/src/utilities/sdk_configuration.dart
index eb650187e..0439e01e6 100644
--- a/dwds/lib/src/utilities/sdk_configuration.dart
+++ b/dwds/lib/src/utilities/sdk_configuration.dart
@@ -120,7 +120,7 @@ class SdkConfiguration {
 class DefaultSdkConfigurationProvider extends SdkConfigurationProvider {
   DefaultSdkConfigurationProvider();
 
-  late SdkConfiguration _configuration = _create();
+  late final SdkConfiguration _configuration = _create();
 
   /// Create and validate configuration matching the default SDK layout.
   @override