diff --git a/src/modules/cmdpal/Microsoft.CmdPal.UI.ViewModels/ListViewModel.cs b/src/modules/cmdpal/Microsoft.CmdPal.UI.ViewModels/ListViewModel.cs
index 48c379aee5..4ad20900f7 100644
--- a/src/modules/cmdpal/Microsoft.CmdPal.UI.ViewModels/ListViewModel.cs
+++ b/src/modules/cmdpal/Microsoft.CmdPal.UI.ViewModels/ListViewModel.cs
@@ -380,7 +380,7 @@ public partial class ListViewModel : PageViewModel, IDisposable
                }
                else
                {
-                   WeakReferenceMessenger.Default.Send<UpdateParametersMessage>(null);
+                   WeakReferenceMessenger.Default.Send<UpdateParametersMessage>(new(null));
                }
            });
 
diff --git a/src/modules/cmdpal/Microsoft.CmdPal.UI.ViewModels/Messages/ShowDetailsMessage.cs b/src/modules/cmdpal/Microsoft.CmdPal.UI.ViewModels/Messages/ShowDetailsMessage.cs
index 3434c6bf8c..b51300d6d0 100644
--- a/src/modules/cmdpal/Microsoft.CmdPal.UI.ViewModels/Messages/ShowDetailsMessage.cs
+++ b/src/modules/cmdpal/Microsoft.CmdPal.UI.ViewModels/Messages/ShowDetailsMessage.cs
@@ -10,7 +10,3 @@ namespace Microsoft.CmdPal.UI.ViewModels.Messages;
 public record ShowDetailsMessage(DetailsViewModel Details)
 {
 }
-
-public record UpdateParametersMessage(IEnumerable<ParameterViewModel>? Parameters)
-{
-}
diff --git a/src/modules/cmdpal/Microsoft.CmdPal.UI.ViewModels/Messages/UpdateParametersMessage.cs b/src/modules/cmdpal/Microsoft.CmdPal.UI.ViewModels/Messages/UpdateParametersMessage.cs
new file mode 100644
index 0000000000..3fd678268e
--- /dev/null
+++ b/src/modules/cmdpal/Microsoft.CmdPal.UI.ViewModels/Messages/UpdateParametersMessage.cs
@@ -0,0 +1,9 @@
+// Copyright (c) Microsoft Corporation
+// The Microsoft Corporation licenses this file to you under the MIT license.
+// See the LICENSE file in the project root for more information.
+
+namespace Microsoft.CmdPal.UI.ViewModels.Messages;
+
+public record UpdateParametersMessage(IEnumerable<ParameterViewModel>? Parameters)
+{
+}