diff --git a/include/neuron/type.h b/include/neuron/type.h
index 63e46fb2..dcad7fb6 100644
--- a/include/neuron/type.h
+++ b/include/neuron/type.h
@@ -156,6 +156,7 @@ typedef struct {
 } neu_value_ptr_t;
 
 #define NEU_VALUE_SIZE 512
+#define NEU_ARRAY_SIZE 128
 
 typedef struct {
     uint8_t bytes[NEU_VALUE_SIZE];
diff --git a/plugins/restful/rw_handle.c b/plugins/restful/rw_handle.c
index dd0e9742..99d89bb9 100644
--- a/plugins/restful/rw_handle.c
+++ b/plugins/restful/rw_handle.c
@@ -284,7 +284,7 @@ void handle_write(nng_aio *aio)
             }
 
             if (req->t == NEU_JSON_ARRAY_INT64 &&
-                req->value.val_array_int64.length > NEU_VALUE_SIZE) {
+                req->value.val_array_int64.length > NEU_ARRAY_SIZE) {
                 NEU_JSON_RESPONSE_ERROR(NEU_ERR_STRING_TOO_LONG, {
                     neu_http_response(aio, NEU_ERR_STRING_TOO_LONG,
                                       result_error);