diff --git a/src/EventStore.Plugins/MD5/IMD5Plugin.cs b/src/EventStore.Plugins/MD5/IMD5Plugin.cs
index 7ac45d7..f07e5c3 100644
--- a/src/EventStore.Plugins/MD5/IMD5Plugin.cs
+++ b/src/EventStore.Plugins/MD5/IMD5Plugin.cs
@@ -1,4 +1,7 @@
-namespace EventStore.Plugins.MD5;
+using System;
+using System.Text.Json.Nodes;
+
+namespace EventStore.Plugins.MD5;
 
 public interface IMD5Plugin {
 	string Name { get; }
@@ -6,6 +9,8 @@ public interface IMD5Plugin {
 
 	string CommandLineName { get; }
 
+	void CollectTelemetry(Action<string, JsonNode> reply);
+
 	/// <summary>
 	///     Creates an MD5 provider factory for the MD5 plugin
 	/// </summary>
diff --git a/src/EventStore.Plugins/Subsystems/ISubsystem.cs b/src/EventStore.Plugins/Subsystems/ISubsystem.cs
index 5dd29a8..8e24bb2 100644
--- a/src/EventStore.Plugins/Subsystems/ISubsystem.cs
+++ b/src/EventStore.Plugins/Subsystems/ISubsystem.cs
@@ -11,7 +11,7 @@ public interface ISubsystem {
 	string Name { get; }
 	IApplicationBuilder Configure(IApplicationBuilder builder);
 	IServiceCollection ConfigureServices(IServiceCollection services, IConfiguration configuration);
-	void CollectTelemetry(Action<string, JsonNode> collect);
+	void CollectTelemetry(Action<string, JsonNode> reply);
 	Task Start();
 	Task Stop();
 }