diff --git a/data/battle_scripts_1.s b/data/battle_scripts_1.s
index 0615e1239..0939b5b18 100644
--- a/data/battle_scripts_1.s
+++ b/data/battle_scripts_1.s
@@ -3878,6 +3878,7 @@ BattleScript_PerishSongLoopIncrement::
 	goto BattleScript_MoveEnd
 
 BattleScript_PerishSongBlocked::
+	copybyte sBATTLER, gBattlerTarget
 	printstring STRINGID_PKMNSXBLOCKSY2
 	waitmessage B_WAIT_TIME_LONG
 	goto BattleScript_PerishSongLoopIncrement
diff --git a/src/battle_util.c b/src/battle_util.c
index a709aaf9e..cd5997f1f 100644
--- a/src/battle_util.c
+++ b/src/battle_util.c
@@ -4458,7 +4458,7 @@ u8 AbilityBattleEffects(u8 caseID, u8 battler, u16 ability, u8 special, u16 move
         }
         break;
     case ABILITYEFFECT_MOVES_BLOCK: // 2
-        if ((gLastUsedAbility == ABILITY_SOUNDPROOF && gBattleMoves[move].flags & FLAG_SOUND)
+        if ((gLastUsedAbility == ABILITY_SOUNDPROOF && gBattleMoves[move].flags & FLAG_SOUND && gCurrentMove != MOVE_PERISH_SONG)
             || (gLastUsedAbility == ABILITY_BULLETPROOF && gBattleMoves[move].flags & FLAG_BALLISTIC))
         {
             if (gBattleMons[gBattlerAttacker].status2 & STATUS2_MULTIPLETURNS)