diff --git a/drivers/power/supply/max17042_battery.c b/drivers/power/supply/max17042_battery.c
index fe5331b..2eea2b0 100644
--- a/drivers/power/supply/max17042_battery.c
+++ b/drivers/power/supply/max17042_battery.c
@@ -825,7 +825,8 @@
 	regmap_read(map, MAX17042_RepSOC, &soc);
 	soc >>= 8;
 	soc_tr = (soc + off) << 8;
-	soc_tr |= (soc - off);
+	if (off < soc)
+		soc_tr |= soc - off;
 	regmap_write(map, MAX17042_SALRT_Th, soc_tr);
 }