diff --git a/Documentation/devicetree/bindings/net/mdio.yaml b/Documentation/devicetree/bindings/net/mdio.yaml
index 08e15fb1584f..53206e4a7a14 100644
--- a/Documentation/devicetree/bindings/net/mdio.yaml
+++ b/Documentation/devicetree/bindings/net/mdio.yaml
@@ -59,7 +59,7 @@ properties:
     type: boolean
 
 patternProperties:
-  "^ethernet-phy@[0-9a-f]+$":
+  '@[0-9a-f]+$':
     type: object
 
     properties: