diff --git a/AI/Nullkiller/Analyzers/ObjectClusterizer.cpp b/AI/Nullkiller/Analyzers/ObjectClusterizer.cpp
index 8d318badf..7e46dc713 100644
--- a/AI/Nullkiller/Analyzers/ObjectClusterizer.cpp
+++ b/AI/Nullkiller/Analyzers/ObjectClusterizer.cpp
@@ -467,7 +467,7 @@ void ObjectClusterizer::clusterizeObject(
 
 				heroesProcessed.insert(path.targetHero);
 
-				float priority = priorityEvaluator->evaluate(Goals::sptr(Goals::ExecuteHeroChain(path, obj)), 5);
+				float priority = priorityEvaluator->evaluate(Goals::sptr(Goals::ExecuteHeroChain(path, obj)), PriorityEvaluator::PriorityTier::HUNTER_GATHER);
 
 				if(ai->settings->isUseFuzzy() && priority < MIN_PRIORITY)
 					continue;
@@ -490,7 +490,7 @@ void ObjectClusterizer::clusterizeObject(
 
 		heroesProcessed.insert(path.targetHero);
 
-		float priority = priorityEvaluator->evaluate(Goals::sptr(Goals::ExecuteHeroChain(path, obj)), 5);
+		float priority = priorityEvaluator->evaluate(Goals::sptr(Goals::ExecuteHeroChain(path, obj)), PriorityEvaluator::PriorityTier::HUNTER_GATHER);
 
 		if (ai->settings->isUseFuzzy() && priority < MIN_PRIORITY)
 			continue;
diff --git a/AI/Nullkiller/Engine/Nullkiller.cpp b/AI/Nullkiller/Engine/Nullkiller.cpp
index 9984dbf51..bc6dae208 100644
--- a/AI/Nullkiller/Engine/Nullkiller.cpp
+++ b/AI/Nullkiller/Engine/Nullkiller.cpp
@@ -180,7 +180,7 @@ Goals::TTaskVec Nullkiller::buildPlan(TGoalVec & tasks, int priorityTier) const
 			for(size_t i = r.begin(); i != r.end(); i++)
 			{
 				auto task = tasks[i];
-				if (task->asTask()->priority <= 0 || priorityTier != 0)
+				if (task->asTask()->priority <= 0 || priorityTier != PriorityEvaluator::PriorityTier::BUILDINGS)
 					task->asTask()->priority = evaluator->evaluate(task, priorityTier);
 			}
 		});
@@ -385,7 +385,7 @@ void Nullkiller::makeTurn()
 
 			if(bestTask->priority > 0)
 			{
-				logAi->info("Pass %d: Performing task %s with prio: %d", bestTask->toString(), bestTask->priority);
+				logAi->info("Pass %d: Performing task %s with prio: %d", i, bestTask->toString(), bestTask->priority);
 				if(!executeTask(bestTask))
 					return;
 
@@ -408,7 +408,7 @@ void Nullkiller::makeTurn()
 
 		TTaskVec selectedTasks;
 		int prioOfTask = 0;
-		for (int prio = 1; prio <= 6; ++prio)
+		for (int prio = PriorityEvaluator::PriorityTier::INSTAKILL; prio <= PriorityEvaluator::PriorityTier::DEFEND; ++prio)
 		{
 			prioOfTask = prio;
 			selectedTasks = buildPlan(bestTasks, prio);
diff --git a/AI/Nullkiller/Engine/PriorityEvaluator.cpp b/AI/Nullkiller/Engine/PriorityEvaluator.cpp
index d898ae1b8..51c2ac804 100644
--- a/AI/Nullkiller/Engine/PriorityEvaluator.cpp
+++ b/AI/Nullkiller/Engine/PriorityEvaluator.cpp
@@ -1398,7 +1398,7 @@ float PriorityEvaluator::evaluate(Goals::TSubgoal task, int priorityTier)
 
 		switch (priorityTier)
 		{
-			case 1: //Take towns / kill heroes in immediate reach
+			case PriorityTier::INSTAKILL: //Take towns / kill heroes in immediate reach
 			{
 				if (evaluationContext.turn > 0)
 					return 0;
@@ -1413,14 +1413,14 @@ float PriorityEvaluator::evaluate(Goals::TSubgoal task, int priorityTier)
 					score /= evaluationContext.movementCost;
 				break;
 			}
-			case 2: //Defend immediately threatened towns
+			case PriorityTier::INSTADEFEND: //Defend immediately threatened towns
 			{
 				if (evaluationContext.isDefend && evaluationContext.threatTurns == 0 && evaluationContext.turn == 0)
 					score = evaluationContext.armyInvolvement;
 				score *= evaluationContext.closestWayRatio;
 				break;
 			}
-			case 3: //Take towns / kill heroes that are further away
+			case PriorityTier::KILL: //Take towns / kill heroes that are further away
 			{
 				if (evaluationContext.conquestValue > 0)
 					score = 1000;
@@ -1433,7 +1433,7 @@ float PriorityEvaluator::evaluate(Goals::TSubgoal task, int priorityTier)
 					score /= evaluationContext.movementCost;
 				break;
 			}
-			case 4: //Collect unguarded stuff
+			case PriorityTier::GATHER: //Collect unguarded stuff
 			{
 				if (evaluationContext.enemyHeroDangerRatio > 1)
 					return 0;
@@ -1463,7 +1463,7 @@ float PriorityEvaluator::evaluate(Goals::TSubgoal task, int priorityTier)
 					score /= evaluationContext.movementCost;
 				break;
 			}
-			case 5: //Collect guarded stuff
+			case PriorityTier::HUNTER_GATHER: //Collect guarded stuff
 			{
 				if (evaluationContext.enemyHeroDangerRatio > 1 && !evaluationContext.isDefend)
 					return 0;
@@ -1489,7 +1489,7 @@ float PriorityEvaluator::evaluate(Goals::TSubgoal task, int priorityTier)
 				}
 				break;
 			}
-			case 6: //Defend whatever if nothing else is to do
+			case PriorityTier::DEFEND: //Defend whatever if nothing else is to do
 			{
 				if (evaluationContext.enemyHeroDangerRatio > 1 && evaluationContext.isExchange)
 					return 0;
@@ -1499,7 +1499,7 @@ float PriorityEvaluator::evaluate(Goals::TSubgoal task, int priorityTier)
 				score /= (evaluationContext.turn + 1);
 				break;
 			}
-			case 0: //For buildings and buying army
+			case PriorityTier::BUILDINGS: //For buildings and buying army
 			{
 				if (maxWillingToLose - evaluationContext.armyLossPersentage < 0)
 					return 0;
diff --git a/AI/Nullkiller/Engine/PriorityEvaluator.h b/AI/Nullkiller/Engine/PriorityEvaluator.h
index c6cef4960..771a913e3 100644
--- a/AI/Nullkiller/Engine/PriorityEvaluator.h
+++ b/AI/Nullkiller/Engine/PriorityEvaluator.h
@@ -104,7 +104,18 @@ public:
 	~PriorityEvaluator();
 	void initVisitTile();
 
-	float evaluate(Goals::TSubgoal task, int priorityTier = 0);
+	float evaluate(Goals::TSubgoal task, int priorityTier = BUILDINGS);
+
+	enum PriorityTier : int32_t
+	{
+		BUILDINGS = 0,
+		INSTAKILL,
+		INSTADEFEND,
+		KILL,
+		GATHER,
+		HUNTER_GATHER,
+		DEFEND
+	};
 
 private:
 	const Nullkiller * ai;