diff --git a/schemas/global.json b/schemas/global.json
index ee1c003..c69b5a4 100644
--- a/schemas/global.json
+++ b/schemas/global.json
@@ -85,6 +85,9 @@
                             "$ref": "legacy.json#/$defs/HostCpuUtilization"
                         },
                         {
+                            "$ref": "legacy.json#/$defs/ExternalSensor"
+                        },
+                        {
                             "$ref": "virtual_sensor.json#/$defs/VirtualSensor"
                         },
                         {