diff --git a/How-to-add-a-new-ability.md b/How-to-add-a-new-ability.md
index 0212d43..52b3c8b 100644
--- a/How-to-add-a-new-ability.md
+++ b/How-to-add-a-new-ability.md
@@ -160,7 +160,8 @@ static void Cmd_weatherdamage(void)
 
 static void Cmd_sethail(void)
 {
-    if (gBattleWeather & WEATHER_HAIL_ANY)
+-    if (gBattleWeather & WEATHER_HAIL)
++    if (gBattleWeather & WEATHER_HAIL_ANY)
     {
         gMoveResultFlags |= MOVE_RESULT_MISSED;
         gBattleCommunication[MULTISTRING_CHOOSER] = 2;