diff --git a/UnitTests/TestHelpers.cs b/UnitTests/TestHelpers.cs
index 88d7ec978..5842b3a38 100644
--- a/UnitTests/TestHelpers.cs
+++ b/UnitTests/TestHelpers.cs
@@ -86,6 +86,7 @@ public class AutoInitShutdownAttribute : BeforeAfterTestAttribute
                 Responder.Instances.Clear ();
             }
 #endif
+            ConfigurationManager.Reset ();
         }
     }