diff --git a/Adventures in Lestoria Tests/EnchantTests.cpp b/Adventures in Lestoria Tests/EnchantTests.cpp
index d0593dea..062b7fc1 100644
--- a/Adventures in Lestoria Tests/EnchantTests.cpp	
+++ b/Adventures in Lestoria Tests/EnchantTests.cpp	
@@ -875,5 +875,36 @@ namespace EnchantTests
 			Assert::AreEqual(1.4f,newMonster.GetMoveSpdMult(),L"Move Spd Multiplier should be reduced by 30%");
 			Assert::AreEqual(8,newMonster.GetAttack(),L"Monster Attack damage should be reduced.");
 		}
+		TEST_METHOD(LongLastingMarkNoEnchantCheck){
+			testKey->bHeld=true; //Force the key to be held down for testing purposes.
+			game->ChangePlayerClass(TRAPPER);
+			player=game->GetPlayer();
+			Monster&newMonster{game->SpawnMonster({},MONSTER_DATA["TestName"])};
+			game->SetElapsedTime(0.01f);
+			game->OnUserUpdate(0.01f);
+			player->_ForceCastSpell(player->GetAbility1());
+			game->SetElapsedTime("Trapper.Ability 1.Precast Time"_F);
+			game->OnUserUpdate("Trapper.Ability 1.Precast Time"_F);
+			game->SetElapsedTime(0.f);
+			game->OnUserUpdate(0.f);
+			Assert::AreEqual(7.f,newMonster.GetBuffs(BuffType::TRAPPER_MARK)[0].duration,L"Mark duration is unaffected.");
+		}
+		TEST_METHOD(LongLastingMarkEnchantCheck){
+			testKey->bHeld=true; //Force the key to be held down for testing purposes.
+			game->ChangePlayerClass(TRAPPER);
+			player=game->GetPlayer();
+			std::weak_ptr<Item>nullRing{Inventory::AddItem("Null Ring"s)};
+			Inventory::EquipItem(nullRing,EquipSlot::RING1);
+			nullRing.lock()->EnchantItem("Long-Lasting Mark");
+			Monster&newMonster{game->SpawnMonster({},MONSTER_DATA["TestName"])};
+			game->SetElapsedTime(0.01f);
+			game->OnUserUpdate(0.01f);
+			player->_ForceCastSpell(player->GetAbility1());
+			game->SetElapsedTime("Trapper.Ability 1.Precast Time"_F);
+			game->OnUserUpdate("Trapper.Ability 1.Precast Time"_F);
+			game->SetElapsedTime(0.f); //Wait for mark lock-on
+			game->OnUserUpdate(0.f); //Wait for mark lock-on
+			Assert::AreEqual(20.f,newMonster.GetBuffs(BuffType::TRAPPER_MARK)[0].duration,L"Mark duration is increased greatly.");
+		}
 	};
 }
\ No newline at end of file
diff --git a/Adventures in Lestoria/Monster.cpp b/Adventures in Lestoria/Monster.cpp
index 086fe964..fb876c7c 100644
--- a/Adventures in Lestoria/Monster.cpp	
+++ b/Adventures in Lestoria/Monster.cpp	
@@ -1329,16 +1329,20 @@ void Monster::TriggerMark(){
 }
 
 void Monster::ApplyMark(float time,uint8_t stackCount){
+	float markDuration{time};
+	if(game->GetPlayer()->HasEnchant("Long-Lasting Mark"))markDuration="Long-Lasting Mark"_ENC["DURATION"];
+
 	if(GetMarkStacks()>0){
 		for(Buff&b:buffList){
 			if(b.type==BuffType::TRAPPER_MARK){
 				b.intensity+=stackCount;
-				b.duration=std::max(b.duration,time);
+
+				b.duration=std::max(b.duration,markDuration);
 				break;
 			}
 		}
 	}else{
-		game->AddToMarkedTargetList({GetWeakPointer(),stackCount,time});
+		game->AddToMarkedTargetList({GetWeakPointer(),stackCount,markDuration});
 	}
 	markApplicationTimer=0.5f;
 }
diff --git a/Adventures in Lestoria/Version.h b/Adventures in Lestoria/Version.h
index e770e8a4..0a0ea549 100644
--- a/Adventures in Lestoria/Version.h	
+++ b/Adventures in Lestoria/Version.h	
@@ -39,7 +39,7 @@ All rights reserved.
 #define VERSION_MAJOR 1
 #define VERSION_MINOR 2
 #define VERSION_PATCH 3
-#define VERSION_BUILD 11017
+#define VERSION_BUILD 11020
 
 #define stringify(a) stringify_(a)
 #define stringify_(a) #a
diff --git a/x64/Release/Adventures in Lestoria.exe b/x64/Release/Adventures in Lestoria.exe
index 43402916..79d49de4 100644
Binary files a/x64/Release/Adventures in Lestoria.exe and b/x64/Release/Adventures in Lestoria.exe differ