diff --git a/dap_chain_net_srv_common.h b/dap_chain_net_srv_common.h
index 58e94f363836e9aa7ffdeb64241f45fb9334003e..6d78a73dd69d73dbad36206a4e667f4837fd5ceb 100755
--- a/dap_chain_net_srv_common.h
+++ b/dap_chain_net_srv_common.h
@@ -68,7 +68,7 @@ typedef struct dap_chain_net_srv_abstract
         struct {
             int bandwith;
             int abuse_resistant;
-            int limit_bytes;
+            size_t limit_bytes;
         } vpn;
         /*struct {
          int value;