diff --git a/tests/Sitko.Core.Configuration.Vault.Tests/BaseVaultTest.cs b/tests/Sitko.Core.Configuration.Vault.Tests/BaseVaultTest.cs
index 4bc28fc23..007ad84a3 100644
--- a/tests/Sitko.Core.Configuration.Vault.Tests/BaseVaultTest.cs
+++ b/tests/Sitko.Core.Configuration.Vault.Tests/BaseVaultTest.cs
@@ -38,6 +38,7 @@ protected override IHostApplicationBuilder ConfigureApplication(IHostApplication
             });
         hostBuilder.Services.Configure<TestConfig>(hostBuilder.Configuration.GetSection("test"));
         hostBuilder.Services.Configure<TestConfig2>(hostBuilder.Configuration.GetSection("test2"));
+        hostBuilder.AddSitkoCore().AddModule<TestModule, TestModuleConfig>();
         return hostBuilder;
     }