diff --git a/src/server/game/Weather/Weather.h b/src/server/game/Weather/Weather.h
index 1fcd822d580..2645d3f2067 100644
--- a/src/server/game/Weather/Weather.h
+++ b/src/server/game/Weather/Weather.h
@@ -46,6 +46,7 @@ struct WeatherData
 enum WeatherState
 {
     WEATHER_STATE_FINE              = 0,
+    WEATHER_STATE_FOG               = 1,
     WEATHER_STATE_LIGHT_RAIN        = 3,
     WEATHER_STATE_MEDIUM_RAIN       = 4,
     WEATHER_STATE_HEAVY_RAIN        = 5,