diff --git a/src/main/java/biomesoplenty/common/biome/BiomeBOP.java b/src/main/java/biomesoplenty/common/biome/BiomeBOP.java
index 021c5bdf7..9d8043c4f 100644
--- a/src/main/java/biomesoplenty/common/biome/BiomeBOP.java
+++ b/src/main/java/biomesoplenty/common/biome/BiomeBOP.java
@@ -16,10 +16,12 @@ import java.util.Map;
 public class BiomeBOP extends Biome
 {
     protected Map<BOPClimates, Integer> weightMap = new HashMap<BOPClimates, Integer>();
+	public boolean canSpawnInBiome;
 
     public BiomeBOP(BiomeBuilder builder)
     {
         super(builder);
+        this.canSpawnInBiome = true;
     }
 
     public void addWeight(BOPClimates climate, int weight)
diff --git a/src/main/java/biomesoplenty/common/biome/overworld/MysticGroveBiome.java b/src/main/java/biomesoplenty/common/biome/overworld/MysticGroveBiome.java
index dbd54e75e..7636bd030 100644
--- a/src/main/java/biomesoplenty/common/biome/overworld/MysticGroveBiome.java
+++ b/src/main/java/biomesoplenty/common/biome/overworld/MysticGroveBiome.java
@@ -110,6 +110,7 @@ public class MysticGroveBiome extends BiomeBOP
         this.addSpawn(EnumCreatureType.MONSTER, new Biome.SpawnListEntry(EntityType.WITCH, 5, 1, 1));
         
         this.addWeight(BOPClimates.WET_TEMPERATE, 1);
+        this.canSpawnInBiome = false;
     }
     
     @OnlyIn(Dist.CLIENT)
diff --git a/src/main/java/biomesoplenty/common/biome/overworld/OminousWoodsBiome.java b/src/main/java/biomesoplenty/common/biome/overworld/OminousWoodsBiome.java
index a5e227302..334ee9bd4 100644
--- a/src/main/java/biomesoplenty/common/biome/overworld/OminousWoodsBiome.java
+++ b/src/main/java/biomesoplenty/common/biome/overworld/OminousWoodsBiome.java
@@ -103,6 +103,7 @@ public class OminousWoodsBiome extends BiomeBOP
         this.addSpawn(EnumCreatureType.MONSTER, new Biome.SpawnListEntry(EntityType.WITCH, 5, 1, 1));
         
         this.addWeight(BOPClimates.WET_BOREAL, 1);
+        this.canSpawnInBiome = false;
     }
     
     @OnlyIn(Dist.CLIENT)
diff --git a/src/main/java/biomesoplenty/common/biome/overworld/OriginBeachBiome.java b/src/main/java/biomesoplenty/common/biome/overworld/OriginBeachBiome.java
index cd7bf01e5..4d1571738 100644
--- a/src/main/java/biomesoplenty/common/biome/overworld/OriginBeachBiome.java
+++ b/src/main/java/biomesoplenty/common/biome/overworld/OriginBeachBiome.java
@@ -77,6 +77,8 @@ public class OriginBeachBiome extends BiomeBOP
         this.addSpawn(EnumCreatureType.MONSTER, new Biome.SpawnListEntry(EntityType.SKELETON, 100, 4, 4));
         this.addSpawn(EnumCreatureType.MONSTER, new Biome.SpawnListEntry(EntityType.CREEPER, 100, 4, 4));
         this.addSpawn(EnumCreatureType.MONSTER, new Biome.SpawnListEntry(EntityType.SLIME, 100, 4, 4));
+        
+        this.canSpawnInBiome = false;
     }
     
     @OnlyIn(Dist.CLIENT)
diff --git a/src/main/java/biomesoplenty/common/biome/overworld/OriginHillsBiome.java b/src/main/java/biomesoplenty/common/biome/overworld/OriginHillsBiome.java
index 0197276a3..214e8c4cc 100644
--- a/src/main/java/biomesoplenty/common/biome/overworld/OriginHillsBiome.java
+++ b/src/main/java/biomesoplenty/common/biome/overworld/OriginHillsBiome.java
@@ -80,6 +80,8 @@ public class OriginHillsBiome extends BiomeBOP
         this.addSpawn(EnumCreatureType.MONSTER, new Biome.SpawnListEntry(EntityType.SKELETON, 100, 4, 4));
         this.addSpawn(EnumCreatureType.MONSTER, new Biome.SpawnListEntry(EntityType.CREEPER, 100, 4, 4));
         this.addSpawn(EnumCreatureType.MONSTER, new Biome.SpawnListEntry(EntityType.SLIME, 100, 4, 4));
+        
+        this.canSpawnInBiome = false;
     }
     
     @OnlyIn(Dist.CLIENT)
diff --git a/src/main/java/biomesoplenty/common/biome/overworld/TropicsBiome.java b/src/main/java/biomesoplenty/common/biome/overworld/TropicsBiome.java
index d1d39c307..8b107214f 100644
--- a/src/main/java/biomesoplenty/common/biome/overworld/TropicsBiome.java
+++ b/src/main/java/biomesoplenty/common/biome/overworld/TropicsBiome.java
@@ -90,6 +90,8 @@ public class TropicsBiome extends BiomeBOP
         // Entity spawning
         this.addSpawn(EnumCreatureType.CREATURE, new Biome.SpawnListEntry(EntityType.PIG, 10, 4, 4));
         this.addSpawn(EnumCreatureType.CREATURE, new Biome.SpawnListEntry(EntityType.PARROT, 40, 1, 2));
+        
+        this.canSpawnInBiome = false;
     }
     
     @OnlyIn(Dist.CLIENT)
diff --git a/src/main/java/biomesoplenty/common/biome/overworld/VolcanoBiome.java b/src/main/java/biomesoplenty/common/biome/overworld/VolcanoBiome.java
index de84095fc..24221da81 100644
--- a/src/main/java/biomesoplenty/common/biome/overworld/VolcanoBiome.java
+++ b/src/main/java/biomesoplenty/common/biome/overworld/VolcanoBiome.java
@@ -89,5 +89,7 @@ public class VolcanoBiome extends BiomeBOP
         this.addSpawn(EnumCreatureType.MONSTER, new Biome.SpawnListEntry(EntityType.SLIME, 100, 4, 4));
         this.addSpawn(EnumCreatureType.MONSTER, new Biome.SpawnListEntry(EntityType.ENDERMAN, 10, 1, 4));
         this.addSpawn(EnumCreatureType.MONSTER, new Biome.SpawnListEntry(EntityType.WITCH, 5, 1, 1));
+        
+        this.canSpawnInBiome = false;
     }
 }
diff --git a/src/main/java/biomesoplenty/common/biome/overworld/WastelandBiome.java b/src/main/java/biomesoplenty/common/biome/overworld/WastelandBiome.java
index 6bc6bb669..dec67fb54 100644
--- a/src/main/java/biomesoplenty/common/biome/overworld/WastelandBiome.java
+++ b/src/main/java/biomesoplenty/common/biome/overworld/WastelandBiome.java
@@ -93,6 +93,7 @@ public class WastelandBiome extends BiomeBOP
         this.addSpawn(EnumCreatureType.MONSTER, new Biome.SpawnListEntry(EntityType.WITCH, 5, 1, 1));
         
         this.addWeight(BOPClimates.HOT_DESERT, 1);
+        this.canSpawnInBiome = false;
     }
     
     @OnlyIn(Dist.CLIENT)
diff --git a/src/main/java/biomesoplenty/common/biome/overworld/WhiteBeachBiome.java b/src/main/java/biomesoplenty/common/biome/overworld/WhiteBeachBiome.java
index 156ba6e9f..1074c54aa 100644
--- a/src/main/java/biomesoplenty/common/biome/overworld/WhiteBeachBiome.java
+++ b/src/main/java/biomesoplenty/common/biome/overworld/WhiteBeachBiome.java
@@ -86,5 +86,7 @@ public class WhiteBeachBiome extends BiomeBOP
         this.addSpawn(EnumCreatureType.MONSTER, new Biome.SpawnListEntry(EntityType.SLIME, 100, 4, 4));
         this.addSpawn(EnumCreatureType.MONSTER, new Biome.SpawnListEntry(EntityType.ENDERMAN, 10, 1, 4));
         this.addSpawn(EnumCreatureType.MONSTER, new Biome.SpawnListEntry(EntityType.WITCH, 5, 1, 1));
+        
+        this.canSpawnInBiome = false;
     }
 }
diff --git a/src/main/java/biomesoplenty/init/ModBiomes.java b/src/main/java/biomesoplenty/init/ModBiomes.java
index 21b11035e..81dee33b0 100644
--- a/src/main/java/biomesoplenty/init/ModBiomes.java
+++ b/src/main/java/biomesoplenty/init/ModBiomes.java
@@ -76,6 +76,7 @@ import net.minecraft.util.registry.IRegistry;
 import net.minecraft.world.biome.Biome;
 import net.minecraftforge.common.BiomeDictionary;
 import net.minecraftforge.common.BiomeDictionary.Type;
+import net.minecraftforge.common.BiomeManager;
 import net.minecraftforge.registries.ForgeRegistries;
 
 import java.util.Map;
@@ -240,6 +241,11 @@ public class ModBiomes
     {
         biome.setRegistryName(name);
         ForgeRegistries.BIOMES.register(biome);
+        
+        if (biome.canSpawnInBiome)
+        {
+        	BiomeManager.addSpawnBiome(biome);
+        }
 
         for (Map.Entry<BOPClimates, Integer> entry : biome.getWeightMap().entrySet())
         {