diff --git a/src/mgos_barometer_bme280.c b/src/mgos_barometer_bme280.c
index 193d5e8..2ce78b0 100644
--- a/src/mgos_barometer_bme280.c
+++ b/src/mgos_barometer_bme280.c
@@ -2,7 +2,9 @@
 #include "mgos_i2c.h"
 
 // Datasheet:
-// https://cdn-shop.adafruit.com/datasheets/MPL115A2.pdf
+// https://cdn-shop.adafruit.com/datasheets/BST-BME280_DS001-10.pdf
+//
+// TODO(pim): Add humidity sensing
 
 bool mgos_barometer_bme280_detect(struct mgos_barometer *dev) {
   int val;