diff --git a/SpeechCLI/Commands/SpeechCommandBase.cs b/SpeechCLI/Commands/SpeechCommandBase.cs
index 9324172..2fc4b8b 100644
--- a/SpeechCLI/Commands/SpeechCommandBase.cs
+++ b/SpeechCLI/Commands/SpeechCommandBase.cs
@@ -1,6 +1,7 @@
 using CRIS;
 using CRIS.Models;
 using McMaster.Extensions.CommandLineUtils;
+using SpeechCLI.Interfaces;
 using SpeechCLI.Utils;
 using System;
 using System.Collections.Generic;
@@ -18,9 +19,9 @@ abstract class SpeechCommandBase
 
         protected static ISpeechServicesAPIv20 _speechApi;
         protected static IConsole _console;
-        protected static Config _config;
+        protected static IConfig _config;
 
-        public SpeechCommandBase(ISpeechServicesAPIv20 speechApi, IConsole console, Config config)
+        public SpeechCommandBase(ISpeechServicesAPIv20 speechApi, IConsole console, IConfig config)
         {
             _speechApi = speechApi;
             _console = console;
diff --git a/SpeechCLI/Commands/TranscriptCommand.cs b/SpeechCLI/Commands/TranscriptCommand.cs
index 2fe0837..1ecd1e9 100644
--- a/SpeechCLI/Commands/TranscriptCommand.cs
+++ b/SpeechCLI/Commands/TranscriptCommand.cs
@@ -28,7 +28,7 @@ namespace SpeechCLI.Commands
     [Subcommand("single", typeof(Single))]
     class TranscriptCommand : SpeechCommandBase
     {
-        public TranscriptCommand(ISpeechServicesAPIv20 speechApi, IConsole console, Config config) : base(speechApi, console, config) { }
+        public TranscriptCommand(ISpeechServicesAPIv20 speechApi, IConsole console, IConfig config) : base(speechApi, console, config) { }
 
         [Command(Description = "Start new batch transcription.")]
         class Create : ParamActionCommandBase
diff --git a/SpeechCLI/MainApp.cs b/SpeechCLI/MainApp.cs
index d1b2bff..21f489a 100644
--- a/SpeechCLI/MainApp.cs
+++ b/SpeechCLI/MainApp.cs
@@ -19,6 +19,4 @@ int OnExecute(CommandLineApplication app, IConsole console)
             return 0;
         }
     }
-
-    
 }