diff --git a/bukkit0/src/main/java/com/thevoxelbox/voxelsniper/Sniper.java b/bukkit0/src/main/java/com/thevoxelbox/voxelsniper/Sniper.java
index c30b19be..6ead4a1f 100644
--- a/bukkit0/src/main/java/com/thevoxelbox/voxelsniper/Sniper.java
+++ b/bukkit0/src/main/java/com/thevoxelbox/voxelsniper/Sniper.java
@@ -71,7 +71,8 @@ public class Sniper {
     }
 
     // Added
-    public AsyncWorld tmpWorld;
+    private AsyncWorld tmpWorld;
+    private MaskedFaweQueue mask;
 
     // Added
     public World getWorld() {
@@ -100,12 +101,14 @@ public class Sniper {
             FaweQueue queue;
             {
                 Player player = getPlayer();
+                FawePlayer<Player> fp = FawePlayer.wrap(player);
+                RegionWrapper[] mask = WEManager.IMP.getMask(fp).toArray(new RegionWrapper[0]);
                 if (tmpWorld == null || !player.getWorld().getName().equals(tmpWorld.getName())) {
-                    FawePlayer<Player> fp = FawePlayer.wrap(player);
-                    RegionWrapper[] mask = WEManager.IMP.getMask(fp).toArray(new RegionWrapper[0]);
                     queue = FaweAPI.createQueue(fp.getLocation().world, true);
-                    queue = new MaskedFaweQueue(queue, mask);
+                    this.mask = (MaskedFaweQueue) (queue = new MaskedFaweQueue(queue, mask));
                     tmpWorld = new AsyncWorld(player.getWorld(), queue);
+                } else if (this.mask != null) {
+                    this.mask.setMask(mask);
                 }
                 if (clickedBlock != null) {
                     clickedBlock = tmpWorld.getBlockAt(clickedBlock.getX(), clickedBlock.getY(), clickedBlock.getZ());
diff --git a/core/src/main/java/com/boydti/fawe/object/MaskedFaweQueue.java b/core/src/main/java/com/boydti/fawe/object/MaskedFaweQueue.java
index 2fb4cc4d..3264a2a3 100644
--- a/core/src/main/java/com/boydti/fawe/object/MaskedFaweQueue.java
+++ b/core/src/main/java/com/boydti/fawe/object/MaskedFaweQueue.java
@@ -6,13 +6,17 @@ import com.sk89q.jnbt.CompoundTag;
 import com.sk89q.worldedit.world.biome.BaseBiome;
 
 public class MaskedFaweQueue extends DelegateFaweQueue {
-    private final RegionWrapper[] mask;
+    private RegionWrapper[] mask;
 
     public MaskedFaweQueue(FaweQueue parent, RegionWrapper[] mask) {
         super(parent);
         this.mask = mask;
     }
 
+    public void setMask(RegionWrapper[] mask) {
+        this.mask = mask;
+    }
+
     @Override
     public void setTile(int x, int y, int z, CompoundTag tag) {
         if (WEManager.IMP.maskContains(mask, x, z)) {