diff --git a/src/org/redkale/net/sncp/SncpDynServlet.java b/src/org/redkale/net/sncp/SncpDynServlet.java
index 92f271df3..b499795a6 100644
--- a/src/org/redkale/net/sncp/SncpDynServlet.java
+++ b/src/org/redkale/net/sncp/SncpDynServlet.java
@@ -588,9 +588,9 @@ public final class SncpDynServlet extends SncpServlet {
             try {
                 SncpServletAction instance = (SncpServletAction) newClazz.newInstance();
                 instance.method = method;
-                java.lang.reflect.Type[] ptypes = TypeToken.getGenericType(method.getGenericParameterTypes(), newClazz);
+                java.lang.reflect.Type[] ptypes = TypeToken.getGenericType(method.getGenericParameterTypes(), serviceClass);
                 java.lang.reflect.Type[] types = new java.lang.reflect.Type[ptypes.length + 1];
-                java.lang.reflect.Type rt = TypeToken.getGenericType(method.getGenericReturnType(), newClazz);
+                java.lang.reflect.Type rt = TypeToken.getGenericType(method.getGenericReturnType(), serviceClass);
                 types[0] = rt;
                 System.arraycopy(ptypes, 0, types, 1, ptypes.length);
                 instance.paramTypes = types;