diff --git a/data/presets/power/generator/source/wind.json b/data/presets/power/generator/source/wind.json
index 19fe5fc1..2fae11c9 100644
--- a/data/presets/power/generator/source/wind.json
+++ b/data/presets/power/generator/source/wind.json
@@ -4,15 +4,15 @@
         "ref",
         "operator",
         "generator/type",
-        "generator/output/electricity"
+        "generator/output/electricity",
+        "rotor/diameter"
     ],
     "moreFields": [
         "{power/generator}"
     ],
     "geometry": [
         "point",
-        "vertex",
-        "area"
+        "vertex"
     ],
     "tags": {
         "power": "generator",