diff --git a/src/MobSpawner.cpp b/src/MobSpawner.cpp
index 0a32d17ef..541135996 100644
--- a/src/MobSpawner.cpp
+++ b/src/MobSpawner.cpp
@@ -110,7 +110,8 @@ eMonsterType cMobSpawner::ChooseMobType(EMCSBiome a_Biome)
 	if (allowedMobsSize > 0)
 	{
 		std::set<eMonsterType>::iterator itr = allowedMobs.begin();
-		int iRandom = m_Random.NextInt((int)allowedMobsSize, a_Biome);
+		static int Counter = 0;
+		int iRandom = m_Random.NextInt((int)allowedMobsSize, Counter++);
 
 		for (int i = 0; i < iRandom; i++)
 		{