diff --git a/Documentation/devicetree/bindings/arm/psci.yaml b/Documentation/devicetree/bindings/arm/psci.yaml
index 0c5381e081bd..cbb012e217ab 100644
--- a/Documentation/devicetree/bindings/arm/psci.yaml
+++ b/Documentation/devicetree/bindings/arm/psci.yaml
@@ -101,6 +101,7 @@ properties:
 patternProperties:
   "^power-domain-":
     $ref: /schemas/power/power-domain.yaml#
+    unevaluatedProperties: false
 
     type: object
     description: |