diff --git a/.github/workflows/health_base.yaml b/.github/workflows/health_base.yaml
index c9ab800a..1a4e7dae 100644
--- a/.github/workflows/health_base.yaml
+++ b/.github/workflows/health_base.yaml
@@ -57,7 +57,7 @@ on:
         type: boolean
       experiments:
         description: Which experiments should be enabled for Dart.
-        default: ""
+        default: "\"\""
         type: string
         required: false
 
diff --git a/pkgs/firehose/bin/health.dart b/pkgs/firehose/bin/health.dart
index ba78fcba..cbf6bd21 100644
--- a/pkgs/firehose/bin/health.dart
+++ b/pkgs/firehose/bin/health.dart
@@ -26,7 +26,6 @@ void main(List<String> arguments) async {
     )
     ..addMultiOption(
       'experiments',
-      defaultsTo: [],
       help: 'Which experiments should be enabled for Dart',
     )
     ..addFlag(