diff --git a/data/battle_scripts_1.s b/data/battle_scripts_1.s
index a1076e921..cb450c385 100644
--- a/data/battle_scripts_1.s
+++ b/data/battle_scripts_1.s
@@ -3650,6 +3650,7 @@ BattleScript_EffectPerishSong::
 	setbyte gBattlerTarget, 0
 BattleScript_PerishSongLoop::
 	jumpifability BS_TARGET, ABILITY_SOUNDPROOF, BattleScript_PerishSongBlocked
+	jumpifbyteequal gBattlerAttacker, gBattlerTarget, BattleScript_PerishSongLoopIncrement	@ cannot block your own perish song
 	jumpifability BS_ATTACKER, ABILITY_PRANKSTER, BattleScript_PerishSongCheckPrankster
 	goto BattleScript_PerishSongLoopIncrement
 BattleScript_PerishSongCheckPrankster:
diff --git a/src/battle_script_commands.c b/src/battle_script_commands.c
index c1da44b2e..5abc8a9d5 100644
--- a/src/battle_script_commands.c
+++ b/src/battle_script_commands.c
@@ -10606,7 +10606,7 @@ static void Cmd_trysetperishsong(void)
     {
         if (gStatuses3[i] & STATUS3_PERISH_SONG
             || gBattleMons[i].ability == ABILITY_SOUNDPROOF
-            || (GetBattlerAbility(gBattlerAttacker) == ABILITY_PRANKSTER && IS_BATTLER_OF_TYPE(i, TYPE_DARK)))
+            || (i != gBattlerAttacker && GetBattlerAbility(gBattlerAttacker) == ABILITY_PRANKSTER && IS_BATTLER_OF_TYPE(i, TYPE_DARK)))
         {
             notAffectedCount++;
         }