diff --git a/src/main/java/net/minecraft/world/storage/ThreadedFileIOBase.java b/src/main/java/net/minecraft/world/storage/ThreadedFileIOBase.java
index d9d6757..a4ee872 100644
--- a/src/main/java/net/minecraft/world/storage/ThreadedFileIOBase.java
+++ b/src/main/java/net/minecraft/world/storage/ThreadedFileIOBase.java
@@ -82,4 +82,10 @@
 
 		this.isThreadWaiting = false;
 	}
+
+	public void waitForFinish(IThreadedFileIO special) throws InterruptedException
+	{
+		while (threadedIOQueue.contains(special))
+			Thread.sleep(10L);
+	}
 }
diff --git a/src/main/java/org/ultramine/server/world/imprt/ImportChunkLoader.java b/src/main/java/org/ultramine/server/world/imprt/ImportChunkLoader.java
index 01312d0..e5ffec7 100644
--- a/src/main/java/org/ultramine/server/world/imprt/ImportChunkLoader.java
+++ b/src/main/java/org/ultramine/server/world/imprt/ImportChunkLoader.java
@@ -67,11 +67,11 @@
 		if(regionCache.size() > limit)
 		{
 			try {
-				ThreadedFileIOBase.threadedIOInstance.waitForFinish();
-			} catch (InterruptedException interruptedexception) {}
+				ThreadedFileIOBase.threadedIOInstance.waitForFinish(this);
+			} catch (InterruptedException ignored) {}
 			
 			for(RegionFile region : regionCache.values())
-				try{region.close();}catch(IOException igrored){}
+				try{region.close();}catch(IOException ignored){}
 			regionCache.clear();
 		}
 	}