diff --git a/AElf.ExceptionHandler.ABP/AutofacRegistration.cs b/AElf.ExceptionHandler.ABP/AutofacRegistration.cs
index be98e1c..f72794a 100644
--- a/AElf.ExceptionHandler.ABP/AutofacRegistration.cs
+++ b/AElf.ExceptionHandler.ABP/AutofacRegistration.cs
@@ -317,6 +317,12 @@ public static void Register(
                 {
                     continue;
                 }
+                
+                // Class type are already registered properly and can be ignored
+                if (descriptor.ServiceType.IsClass)
+                {
+                    continue;
+                }
             }
             
             if (implementationType != null)