diff --git a/drivers/thermal/thermal_core.c b/drivers/thermal/thermal_core.c
index f1db49625555..5133cd1e10b7 100644
--- a/drivers/thermal/thermal_core.c
+++ b/drivers/thermal/thermal_core.c
@@ -959,7 +959,7 @@ static DEVICE_ATTR(sustainable_power, S_IWUSR | S_IRUGO, sustainable_power_show,
 	struct thermal_zone_device *tz = to_thermal_zone(dev);		\
 									\
 	if (tz->tzp)							\
-		return sprintf(buf, "%u\n", tz->tzp->name);		\
+		return sprintf(buf, "%d\n", tz->tzp->name);		\
 	else								\
 		return -EIO;						\
 	}								\