diff --git a/docs/core/entity/sensor.md b/docs/core/entity/sensor.md
index e71e2ea6..493ade17 100644
--- a/docs/core/entity/sensor.md
+++ b/docs/core/entity/sensor.md
@@ -42,6 +42,7 @@ If specifying a device class, your sensor entity will need to also return the co
 | gas | m³, ft³ | Volume of gas, statistics will be stored in m³. Gas consumption measured as energy in kWh instead of a volume should be classified as energy.
 | humidity | % | Relative humidity
 | illuminance | lx, lm | Light level
+| moisture | % | Moisture
 | monetary | [ISO 4217](https://en.wikipedia.org/wiki/ISO_4217#Active_codes) | Monetary value with a currency.
 | nitrogen_dioxide | µg/m³ | Concentration of nitrogen dioxide |
 | nitrogen_monoxide | µg/m³ | Concentration of nitrogen monoxide |