diff --git a/include/constants/battle.h b/include/constants/battle.h
index fcda91a314..a8a9c882b7 100644
--- a/include/constants/battle.h
+++ b/include/constants/battle.h
@@ -300,7 +300,7 @@ enum BattleWeather
 // Battle Weather flags
 #define B_WEATHER_NONE          0
 #define B_WEATHER_RAIN_NORMAL   (1 << BATTLE_WEATHER_RAIN)
-#define B_WEATHER_RAIN_PRIMAL   (1 << BATTLE_WEATHER_SUN_PRIMAL)
+#define B_WEATHER_RAIN_PRIMAL   (1 << B_WEATHER_RAIN_PRIMAL)
 #define B_WEATHER_RAIN_DOWNPOUR (1 << BATTLE_WEATHER_RAIN_DOWNPOUR)  // unused
 #define B_WEATHER_RAIN          (B_WEATHER_RAIN_NORMAL | B_WEATHER_RAIN_PRIMAL | B_WEATHER_RAIN_DOWNPOUR)
 #define B_WEATHER_SANDSTORM     (1 << BATTLE_WEATHER_SANDSTORM)