diff --git a/drivers/leds/leds-hp-disk.c b/drivers/leds/leds-hp-disk.c
index 53a25b1c2dae..74645ab15660 100644
--- a/drivers/leds/leds-hp-disk.c
+++ b/drivers/leds/leds-hp-disk.c
@@ -49,7 +49,7 @@ static struct acpi_hpled adev;
 
 static acpi_status hpled_acpi_write(acpi_handle handle, int reg)
 {
-	unsigned long ret; /* Not used when writing */
+	unsigned long long ret; /* Not used when writing */
 	union acpi_object in_obj[1];
 	struct acpi_object_list args = { 1, in_obj };