diff --git a/src/Discord.Net.Commands/CommandService.cs b/src/Discord.Net.Commands/CommandService.cs
index 7efc1bc62..d79a3a03b 100644
--- a/src/Discord.Net.Commands/CommandService.cs
+++ b/src/Discord.Net.Commands/CommandService.cs
@@ -95,9 +95,11 @@ namespace Discord.Commands
                 _moduleLock.Release();
             }
         }
-        public Task<ModuleInfo> AddModuleAsync<T>(IServiceProvider services) => AddModuleAsync(typeof(T), services);
-        public async Task<ModuleInfo> AddModuleAsync(Type type, IServiceProvider services)
+        public Task<ModuleInfo> AddModuleAsync<T>(IServiceProvider services = null) => AddModuleAsync(typeof(T), services);
+        public async Task<ModuleInfo> AddModuleAsync(Type type, IServiceProvider services = null)
         {
+            services = services ?? EmptyServiceProvider.Instance;
+
             await _moduleLock.WaitAsync().ConfigureAwait(false);
             try
             {
@@ -120,8 +122,10 @@ namespace Discord.Commands
                 _moduleLock.Release();
             }
         }
-        public async Task<IEnumerable<ModuleInfo>> AddModulesAsync(Assembly assembly, IServiceProvider services)
+        public async Task<IEnumerable<ModuleInfo>> AddModulesAsync(Assembly assembly, IServiceProvider services = null)
         {
+            services = services ?? EmptyServiceProvider.Instance;
+
             await _moduleLock.WaitAsync().ConfigureAwait(false);
             try
             {
diff --git a/src/Discord.Net.Commands/Utilities/ReflectionUtils.cs b/src/Discord.Net.Commands/Utilities/ReflectionUtils.cs
index ab88f66ae..30dd7c36b 100644
--- a/src/Discord.Net.Commands/Utilities/ReflectionUtils.cs
+++ b/src/Discord.Net.Commands/Utilities/ReflectionUtils.cs
@@ -1,4 +1,4 @@
-using System;
+using System;
 using System.Collections.Generic;
 using System.Linq;
 using System.Reflection;