diff --git a/src/battle_ai_main.c b/src/battle_ai_main.c
index 85f00d4b1a..a4e818b570 100644
--- a/src/battle_ai_main.c
+++ b/src/battle_ai_main.c
@@ -5855,7 +5855,7 @@ static s32 AI_CalcAdditionalEffectScore(u32 battlerAtk, u32 battlerDef, u32 move
                     ADJUST_SCORE(DECENT_EFFECT);
                 break;
             case MOVE_EFFECT_STEALTH_ROCK:
-                if (AI_ShouldSetUpHazards(battlerAtk, battlerDef, move, aiData));
+                if (AI_ShouldSetUpHazards(battlerAtk, battlerDef, move, aiData))
                 {
                     if (gDisableStructs[battlerAtk].isFirstTurn)
                         ADJUST_SCORE(BEST_EFFECT);