diff --git a/include/battle_util.h b/include/battle_util.h
index 644a112d7d..118ef8c6b3 100644
--- a/include/battle_util.h
+++ b/include/battle_util.h
@@ -146,7 +146,7 @@ bool32 TryChangeBattleWeather(u32 battler, u32 weatherEnumId, bool32 viaAbility)
 u32 AbilityBattleEffects(u32 caseID, u32 battler, u32 ability, u32 special, u32 moveArg);
 bool32 TryPrimalReversion(u32 battler);
 bool32 IsNeutralizingGasOnField(void);
-bool32 IsMoldBreakerTypeAbility(u32 ability);
+bool32 IsMoldBreakerTypeAbility(u32 battler, u32 ability);
 u32 GetBattlerAbility(u32 battler);
 u32 IsAbilityOnSide(u32 battler, u32 ability);
 u32 IsAbilityOnOpposingSide(u32 battler, u32 ability);
diff --git a/src/battle_ai_util.c b/src/battle_ai_util.c
index b9770ba950..1498d8936c 100644
--- a/src/battle_ai_util.c
+++ b/src/battle_ai_util.c
@@ -1188,7 +1188,7 @@ bool32 DoesBattlerIgnoreAbilityChecks(u32 atkAbility, u32 move)
     if (AI_THINKING_STRUCT->aiFlags[sBattler_AI] & AI_FLAG_NEGATE_UNAWARE)
         return FALSE;   // AI handicap flag: doesn't understand ability suppression concept
 
-    if (IsMoldBreakerTypeAbility(atkAbility) || gMovesInfo[move].ignoresTargetAbility)
+    if (IsMoldBreakerTypeAbility(sBattler_AI, atkAbility) || gMovesInfo[move].ignoresTargetAbility)
         return TRUE;
 
     return FALSE;
@@ -2766,7 +2766,7 @@ bool32 AI_CanBeInfatuated(u32 battlerAtk, u32 battlerDef, u32 defAbility)
 
 u32 ShouldTryToFlinch(u32 battlerAtk, u32 battlerDef, u32 atkAbility, u32 defAbility, u32 move)
 {
-    if (((!IsMoldBreakerTypeAbility(AI_DATA->abilities[battlerAtk]) && (defAbility == ABILITY_SHIELD_DUST || defAbility == ABILITY_INNER_FOCUS))
+    if (((!IsMoldBreakerTypeAbility(battlerAtk, AI_DATA->abilities[battlerAtk]) && (defAbility == ABILITY_SHIELD_DUST || defAbility == ABILITY_INNER_FOCUS))
       || AI_DATA->holdEffects[battlerDef] == HOLD_EFFECT_COVERT_CLOAK
       || DoesSubstituteBlockMove(battlerAtk, battlerDef, move)
       || AI_WhoStrikesFirst(battlerAtk, battlerDef, move) == AI_IS_SLOWER)) // Opponent goes first
@@ -2809,7 +2809,7 @@ bool32 ShouldFakeOut(u32 battlerAtk, u32 battlerDef, u32 move)
     || AI_DATA->holdEffects[battlerAtk] == HOLD_EFFECT_CHOICE_BAND
     || AI_DATA->holdEffects[battlerDef] == HOLD_EFFECT_COVERT_CLOAK
     || DoesSubstituteBlockMove(battlerAtk, battlerDef, move)
-    || (!IsMoldBreakerTypeAbility(AI_DATA->abilities[battlerAtk])
+    || (!IsMoldBreakerTypeAbility(battlerAtk, AI_DATA->abilities[battlerAtk])
     && (AI_DATA->abilities[battlerDef] == ABILITY_SHIELD_DUST || AI_DATA->abilities[battlerDef] == ABILITY_INNER_FOCUS)))
         return FALSE;
 
diff --git a/src/battle_util.c b/src/battle_util.c
index 9ea7a453cb..e87fa9f368 100644
--- a/src/battle_util.c
+++ b/src/battle_util.c
@@ -6207,23 +6207,41 @@ bool32 IsNeutralizingGasOnField(void)
     return FALSE;
 }
 
-bool32 IsMoldBreakerTypeAbility(u32 ability)
+bool32 IsMoldBreakerTypeAbility(u32 battler, u32 ability)
 {
+    if (gStatuses3[battler] & STATUS3_GASTRO_ACID)
+        return FALSE;
+
     return (ability == ABILITY_MOLD_BREAKER || ability == ABILITY_TERAVOLT || ability == ABILITY_TURBOBLAZE
         || (ability == ABILITY_MYCELIUM_MIGHT && IS_MOVE_STATUS(gCurrentMove)));
 }
 
+static inline bool32 CanBreakThroughAbility(u32 battlerAtk, u32 battlerDef, u32 ability)
+{
+    return ((IsMoldBreakerTypeAbility(battlerAtk, ability) || gMovesInfo[gCurrentMove].ignoresTargetAbility)
+         && battlerDef != battlerAtk
+         && gAbilitiesInfo[gBattleMons[battlerDef].ability].breakable
+         && gBattlerByTurnOrder[gCurrentTurnActionNumber] == battlerAtk
+         && gActionsByTurnOrder[gCurrentTurnActionNumber] == B_ACTION_USE_MOVE
+         && gCurrentTurnActionNumber < gBattlersCount);
+}
+
 u32 GetBattlerAbility(u32 battler)
 {
     bool32 noAbilityShield = GetBattlerHoldEffectIgnoreAbility(battler, TRUE) != HOLD_EFFECT_ABILITY_SHIELD;
+    bool32 abilityCantBeSuppressed = gAbilitiesInfo[gBattleMons[battler].ability].cantBeSuppressed;
 
-    if (gAbilitiesInfo[gBattleMons[battler].ability].cantBeSuppressed)
+    if (abilityCantBeSuppressed)
     {
         // Edge case: pokemon under the effect of gastro acid transforms into a pokemon with Comatose (Todo: verify how other unsuppressable abilities behave)
         if (gBattleMons[battler].status2 & STATUS2_TRANSFORMED
             && gStatuses3[battler] & STATUS3_GASTRO_ACID
             && gBattleMons[battler].ability == ABILITY_COMATOSE)
                 return ABILITY_NONE;
+
+        if (noAbilityShield && CanBreakThroughAbility(gBattlerAttacker, battler, gBattleMons[gBattlerAttacker].ability))
+            return ABILITY_NONE;
+
         return gBattleMons[battler].ability;
     }
 
@@ -6235,15 +6253,7 @@ u32 GetBattlerAbility(u32 battler)
      && noAbilityShield)
         return ABILITY_NONE;
 
-    if (((IsMoldBreakerTypeAbility(gBattleMons[gBattlerAttacker].ability)
-            && !(gStatuses3[gBattlerAttacker] & STATUS3_GASTRO_ACID))
-            || gMovesInfo[gCurrentMove].ignoresTargetAbility)
-            && battler != gBattlerAttacker
-            && gAbilitiesInfo[gBattleMons[battler].ability].breakable
-            && noAbilityShield
-            && gBattlerByTurnOrder[gCurrentTurnActionNumber] == gBattlerAttacker
-            && gActionsByTurnOrder[gCurrentTurnActionNumber] == B_ACTION_USE_MOVE
-            && gCurrentTurnActionNumber < gBattlersCount)
+    if (noAbilityShield && CanBreakThroughAbility(gBattlerAttacker, battler, gBattleMons[gBattlerAttacker].ability))
         return ABILITY_NONE;
 
     return gBattleMons[battler].ability;
diff --git a/test/battle/ability/disguise.c b/test/battle/ability/disguise.c
index 7d3e36bf78..c4f79d8fe3 100644
--- a/test/battle/ability/disguise.c
+++ b/test/battle/ability/disguise.c
@@ -121,3 +121,16 @@ SINGLE_BATTLE_TEST("Disguised Mimikyu takes damage from Rough Skin without break
         EXPECT_EQ(player->species, SPECIES_MIMIKYU_DISGUISED);
     }
 }
+
+SINGLE_BATTLE_TEST("Disguised Mimikyu is ignored by Mold Breaker")
+{
+    GIVEN {
+        PLAYER(SPECIES_MIMIKYU_DISGUISED) { Ability(ABILITY_DISGUISE); }
+        OPPONENT(SPECIES_PINSIR) { Ability(ABILITY_MOLD_BREAKER); }
+    } WHEN {
+        TURN { MOVE(opponent, MOVE_AERIAL_ACE); }
+    } SCENE {
+        ANIMATION(ANIM_TYPE_MOVE, MOVE_AERIAL_ACE, opponent);
+        NOT ABILITY_POPUP(player, ABILITY_DISGUISE);
+    }
+}