diff --git a/Documentation/devicetree/bindings/power/fsl,imx-gpcv2.yaml b/Documentation/devicetree/bindings/power/fsl,imx-gpcv2.yaml
index 3b161e01f920..58022ae7d5dd 100644
--- a/Documentation/devicetree/bindings/power/fsl,imx-gpcv2.yaml
+++ b/Documentation/devicetree/bindings/power/fsl,imx-gpcv2.yaml
@@ -53,7 +53,7 @@ properties:
         const: 0
 
     patternProperties:
-      "power-domain@[0-9]$":
+      "power-domain@[0-9a-f]+$":
         type: object
         additionalProperties: false