diff --git a/protocol/src/main/java/com/zfoo/protocol/serializer/kotlin/CodeGenerateKotlin.java b/protocol/src/main/java/com/zfoo/protocol/serializer/kotlin/CodeGenerateKotlin.java
index 9ce874c9..ff41b21f 100644
--- a/protocol/src/main/java/com/zfoo/protocol/serializer/kotlin/CodeGenerateKotlin.java
+++ b/protocol/src/main/java/com/zfoo/protocol/serializer/kotlin/CodeGenerateKotlin.java
@@ -92,7 +92,7 @@ public class CodeGenerateKotlin implements ICodeGenerate {
         for (var registration : registrations) {
             var protocol_id = registration.protocolId();
             var protocol_name = registration.protocolConstructor().getDeclaringClass().getSimpleName();
-            protocol_manager_registrations.append(StringUtils.format("protocols[{}] = Registration{}()", protocol_id, protocol_name)).append(LS);
+            protocol_manager_registrations.append(StringUtils.format("protocols[{}] = {}Registration()", protocol_id, protocol_name)).append(LS);
             protocol_manager_registrations.append(StringUtils.format("protocolIdMap.put({}::class.java, {})", protocol_name, protocol_id)).append(LS);
         }
 
@@ -137,8 +137,8 @@ public class CodeGenerateKotlin implements ICodeGenerate {
             var protocol_id = registration.protocolId();
             var protocol_name = registration.protocolConstructor().getDeclaringClass().getSimpleName();
             protocol_imports.append(StringUtils.format("import {}.{}.{}", protocolPackage, GenerateProtocolPath.protocolPathPeriod(protocol_id), protocol_name)).append(LS);
-            protocol_imports.append(StringUtils.format("import {}.{}.Registration{}", protocolPackage, GenerateProtocolPath.protocolPathPeriod(protocol_id), protocol_name)).append(LS);
-            protocol_manager_registrations.append(StringUtils.format("protocols[{}] = Registration{}()", protocol_id, protocol_name)).append(LS);
+            protocol_imports.append(StringUtils.format("import {}.{}.{}Registration", protocolPackage, GenerateProtocolPath.protocolPathPeriod(protocol_id), protocol_name)).append(LS);
+            protocol_manager_registrations.append(StringUtils.format("protocols[{}] = {}Registration()", protocol_id, protocol_name)).append(LS);
             protocol_manager_registrations.append(StringUtils.format("protocolIdMap[{}::class.java] = {}.toShort()", protocol_name, protocol_id)).append(LS);
         }
 
@@ -178,7 +178,7 @@ public class CodeGenerateKotlin implements ICodeGenerate {
         for (var registration : registrations) {
             var protocol_id = registration.protocolId();
             var protocol_name = registration.protocolConstructor().getDeclaringClass().getSimpleName();
-            protocol_manager_registrations.append(StringUtils.format("protocols[{}] = Registration{}()", protocol_id, protocol_name)).append(LS);
+            protocol_manager_registrations.append(StringUtils.format("protocols[{}] = {}Registration()", protocol_id, protocol_name)).append(LS);
             protocol_manager_registrations.append(StringUtils.format("protocolIdMap[{}::class.java] = {}.toShort()", protocol_name, protocol_id)).append(LS);
         }
 
diff --git a/protocol/src/main/resources/kotlin/ProtocolRegistrationTemplate.kt b/protocol/src/main/resources/kotlin/ProtocolRegistrationTemplate.kt
index 5c8d1aa1..44ba6a18 100644
--- a/protocol/src/main/resources/kotlin/ProtocolRegistrationTemplate.kt
+++ b/protocol/src/main/resources/kotlin/ProtocolRegistrationTemplate.kt
@@ -1,4 +1,4 @@
-class Registration${protocol_name} : IProtocolRegistration {
+class ${protocol_name}Registration : IProtocolRegistration {
     override fun protocolId(): Short {
         return ${protocol_id}
     }