diff --git a/dts/bindings/test/vnd,serial.yaml b/dts/bindings/test/vnd,serial.yaml
index dc2327b4827..c2d931b0ed7 100644
--- a/dts/bindings/test/vnd,serial.yaml
+++ b/dts/bindings/test/vnd,serial.yaml
@@ -5,9 +5,6 @@ compatible: "vnd,serial"
 include: uart-controller.yaml
 
 properties:
-  reg:
-    required: true
-
   baud-rate:
     type: int