diff --git a/Documentation/devicetree/bindings/extcon/maxim,max77843.yaml b/Documentation/devicetree/bindings/extcon/maxim,max77843.yaml
index 128960545640..55800fb0221d 100644
--- a/Documentation/devicetree/bindings/extcon/maxim,max77843.yaml
+++ b/Documentation/devicetree/bindings/extcon/maxim,max77843.yaml
@@ -23,6 +23,7 @@ properties:
 
   connector:
     $ref: /schemas/connector/usb-connector.yaml#
+    unevaluatedProperties: false
 
   ports:
     $ref: /schemas/graph.yaml#/properties/ports