diff --git a/drivers/hwmon/sht3x.c b/drivers/hwmon/sht3x.c
index b46de050e20a..a0f5ba5c888d 100644
--- a/drivers/hwmon/sht3x.c
+++ b/drivers/hwmon/sht3x.c
@@ -543,7 +543,10 @@ static ssize_t heater_enable_store(struct device *dev,
 
 	mutex_unlock(&data->i2c_lock);
 
-	return ret;
+	if (ret != SHT3X_CMD_LENGTH)
+		return ret < 0 ? ret : -EIO;
+
+	return count;
 }
 
 static int update_interval_read(struct device *dev)