diff --git a/schemas/global.json b/schemas/global.json
index 8fdbc81..28a174c 100644
--- a/schemas/global.json
+++ b/schemas/global.json
@@ -121,6 +121,9 @@
                             "$ref": "legacy.json#/$defs/PSUSensor"
                         },
                         {
+                            "$ref": "legacy.json#/$defs/NMSensor"
+                        },
+                        {
                             "$ref": "virtual_sensor.json#/$defs/VirtualSensor"
                         },
                         {
diff --git a/schemas/legacy.json b/schemas/legacy.json
index ca0f461..c0dbf17 100644
--- a/schemas/legacy.json
+++ b/schemas/legacy.json
@@ -952,6 +952,18 @@
             "required": ["Name", "Type"],
             "type": "object"
         },
+        "NMSensor": {
+            "description": "unknown purpose",
+            "additionalProperties": false,
+            "properties": {
+                "Name": {
+                    "$ref": "#/$defs/Types/Name"
+                },
+                "Type": {
+                    "const": "NMSensor"
+                }
+            }
+        },
         "Aggregate": {
             "description": "Don't add additional properties to this schema. Consult README.schema for instructions on adding new Exposes element sub-schema.",
             "additionalProperties": false,
@@ -1021,7 +1033,6 @@
                         "IntelHsbpFruDevice",
                         "IntelHsbpTempSensor",
                         "GenericSMBusMux",
-                        "NMSensor",
                         "PSM7"
                     ]
                 }