diff --git a/redfish-core/lib/ethernet.hpp b/redfish-core/lib/ethernet.hpp
index 04759fe..1f65254 100644
--- a/redfish-core/lib/ethernet.hpp
+++ b/redfish-core/lib/ethernet.hpp
@@ -2187,7 +2187,7 @@
         }
 
         bool vlanEnable = false;
-        uint64_t vlanId = 0;
+        uint32_t vlanId = 0;
 
         if (!json_util::readJson(req, res, "VLANEnable", vlanEnable, "VLANId",
                                  vlanId))