diff --git a/netjsonconfig/backends/openwrt/schema.py b/netjsonconfig/backends/openwrt/schema.py
index 8a5da976f..0dbb39dc3 100644
--- a/netjsonconfig/backends/openwrt/schema.py
+++ b/netjsonconfig/backends/openwrt/schema.py
@@ -173,10 +173,8 @@
         "general": {
             "properties": {
                 "timezone": {
-                    "type": "string",
                     "enum": list(timezones.keys()),
                     "default": "UTC",
-                    "propertyOrder": 1,
                 }
             }
         },
diff --git a/netjsonconfig/schema.py b/netjsonconfig/schema.py
index 17f101403..168c89916 100644
--- a/netjsonconfig/schema.py
+++ b/netjsonconfig/schema.py
@@ -900,6 +900,10 @@
                     "format": "hostname",
                     "propertyOrder": 1,
                 },
+                "timezone": {
+                    "type": "string",
+                    "propertyOrder": 1,
+                },
                 "ula_prefix": {
                     "type": "string",
                     "title": "ULA prefix",