diff --git a/drivers/regulator/wm831x-isink.c b/drivers/regulator/wm831x-isink.c
index 1d8d9879d3a1..48857008758c 100644
--- a/drivers/regulator/wm831x-isink.c
+++ b/drivers/regulator/wm831x-isink.c
@@ -167,6 +167,8 @@ static __devinit int wm831x_isink_probe(struct platform_device *pdev)
 		return -ENOMEM;
 	}
 
+	isink->wm831x = wm831x;
+
 	res = platform_get_resource(pdev, IORESOURCE_IO, 0);
 	if (res == NULL) {
 		dev_err(&pdev->dev, "No I/O resource\n");