diff --git a/ILRuntime/Runtime/CLRBinding/BindingCodeGenerator.cs b/ILRuntime/Runtime/CLRBinding/BindingCodeGenerator.cs
index 4f42b809..8aafdebb 100755
--- a/ILRuntime/Runtime/CLRBinding/BindingCodeGenerator.cs
+++ b/ILRuntime/Runtime/CLRBinding/BindingCodeGenerator.cs
@@ -648,8 +648,8 @@ internal static List<string> GenerateDelegateBinding(List<Type> types, string ou
             {
                 var mi = i.GetMethod("Invoke");
                 var miParameters = mi.GetParameters();
-                if (mi.ReturnType == typeof(void) && miParameters.Length == 0)
-                    continue;
+                //if (mi.ReturnType == typeof(void) && miParameters.Length == 0)
+                //    continue;
 
                 string clsName, realClsName, paramClsName, paramRealClsName;
                 bool isByRef, paramIsByRef;
@@ -704,8 +704,9 @@ public static void Register(ILRuntime.Runtime.Enviorment.AppDomain app)
                         mi.ReturnType.GetClassName(out paramClsName, out paramRealClsName, out paramIsByRef);
                         sb.Append(paramRealClsName);
                         sb.AppendLine("> ();");
+                        sb.AppendLine();
                     }
-                    else
+                    else if (miParameters.Length != 0)
                     {
                         sb.Append("            app.DelegateManager.RegisterMethodDelegate<");
                         first = true;
@@ -721,8 +722,8 @@ public static void Register(ILRuntime.Runtime.Enviorment.AppDomain app)
                             sb.Append(paramRealClsName);
                         }
                         sb.AppendLine("> ();");
+                        sb.AppendLine();
                     }
-                    sb.AppendLine();
 
                     sb.Append("            app.DelegateManager.RegisterDelegateConvertor<");
                     sb.Append(realClsName);
@@ -763,10 +764,14 @@ public static void Register(ILRuntime.Runtime.Enviorment.AppDomain app)
                             sb.Append(", ");
                         mi.ReturnType.GetClassName(out paramClsName, out paramRealClsName, out paramIsByRef);
                         sb.Append(paramRealClsName);
+                        sb.Append(">)act)(");
                     }
                     else
                     {
-                        sb.Append("                    ((Action<");
+                        if (miParameters.Length != 0)
+                            sb.Append("                    ((Action<");
+                        else
+                            sb.Append("                    ((Action");
                         first = true;
                         foreach (var j in miParameters)
                         {
@@ -779,8 +784,11 @@ public static void Register(ILRuntime.Runtime.Enviorment.AppDomain app)
                             j.ParameterType.GetClassName(out paramClsName, out paramRealClsName, out paramIsByRef);
                             sb.Append(paramRealClsName);
                         }
+                        if (miParameters.Length != 0)
+                            sb.Append(">)act)(");
+                        else
+                            sb.Append(")act)(");
                     }
-                    sb.Append(">)act)(");
                     first = true;
                     foreach (var j in miParameters)
                     {